Infrastructure for interrupt handling.
- support interruptibility
- handle interrupt window exiting control appropriately
- Add ioapic device models imported from Bochs under LGPL
- generalize the interrupt architecture to support both PIC/APIC
This patch is necessary to fix several bugs on 32 bit VMX and prepares the
ground for adding a local APIC device model in the hypervisor.
Signed-off-by: Yunhong Jiang <yunhong.jiang@xxxxxxxxx>
Signed-off-by: Eddie Dong <eddie.dong@xxxxxxxxx>
Signed-off-by: Arun Sharma <arun.sharma@xxxxxxxxx>
diff -r 96a4c0de6e53 -r 2d6fd3bba3c2 tools/ioemu/exec-all.h
--- a/tools/ioemu/exec-all.h Thu Jun 30 04:32:55 2005
+++ b/tools/ioemu/exec-all.h Thu Jun 30 05:24:52 2005
@@ -573,7 +573,7 @@
}
#endif
-//#define DEBUG_UNUSED_IOPORT
-//#define DEBUG_IOPORT
+#define DEBUG_UNUSED_IOPORT
+#define DEBUG_IOPORT
#define TARGET_VMX
diff -r 96a4c0de6e53 -r 2d6fd3bba3c2 tools/ioemu/hw/i8259.c
--- a/tools/ioemu/hw/i8259.c Thu Jun 30 04:32:55 2005
+++ b/tools/ioemu/hw/i8259.c Thu Jun 30 05:24:52 2005
@@ -22,12 +22,16 @@
* THE SOFTWARE.
*/
#include "vl.h"
+#include "xc.h"
+#include <io/ioreq.h>
/* debug PIC */
//#define DEBUG_PIC
//#define DEBUG_IRQ_LATENCY
#define DEBUG_IRQ_COUNT
+
+extern void pit_reset_vmx_vectors();
typedef struct PicState {
uint8_t last_irr; /* edge detection */
@@ -121,6 +125,26 @@
}
}
+/* pic[1] is connected to pin2 of pic[0] */
+#define CASCADE_IRQ 2
+
+static void shared_page_update()
+{
+ extern shared_iopage_t *shared_page;
+ uint8_t * pmask = (uint8_t *)&(shared_page->sp_global.pic_mask[0]);
+ int index;
+
+ index = pics[0].irq_base/8;
+ pmask[index] = pics[0].imr;
+ index = pics[1].irq_base/8;
+
+ if ( pics[0].imr & (1 << CASCADE_IRQ) ) {
+ pmask[index] = 0xff;
+ } else {
+ pmask[index] = pics[1].imr;
+ }
+}
+
/* raise irq to CPU if necessary. must be called every time the active
irq may change */
static void pic_update_irq(void)
@@ -150,14 +174,18 @@
#endif
cpu_interrupt(cpu_single_env, CPU_INTERRUPT_HARD);
}
+ shared_page_update();
}
#ifdef DEBUG_IRQ_LATENCY
int64_t irq_time[16];
#endif
+extern void ioapic_legacy_irq(int irq, int level);
+
void pic_set_irq(int irq, int level)
{
+ ioapic_legacy_irq(irq, level);
#if defined(DEBUG_PIC) || defined(DEBUG_IRQ_COUNT)
if (level != irq_level[irq]) {
#if defined(DEBUG_PIC)
@@ -255,6 +283,7 @@
tmp = s->elcr_mask;
memset(s, 0, sizeof(PicState));
s->elcr_mask = tmp;
+ shared_page_update();
}
static void pic_ioport_write(void *opaque, uint32_t addr, uint32_t val)
diff -r 96a4c0de6e53 -r 2d6fd3bba3c2 tools/ioemu/target-i386-dm/helper2.c
--- a/tools/ioemu/target-i386-dm/helper2.c Thu Jun 30 04:32:55 2005
+++ b/tools/ioemu/target-i386-dm/helper2.c Thu Jun 30 05:24:52 2005
@@ -320,7 +320,7 @@
// Send a message on the event channel. Add the vector to the shared mem
// page.
- intr = &(shared_page->vcpu_iodata[0].vp_intr[0]);
+ intr = &(shared_page->sp_global.pic_intr[0]);
atomic_set_bit(vector, intr);
if (loglevel & CPU_LOG_INT)
fprintf(logfile, "injecting vector: %x\n", vector);
@@ -345,11 +345,11 @@
FD_ZERO(&rfds);
while (1) {
- if (vm_running) {
- if (shutdown_requested) {
- break;
+ if (vm_running) {
+ if (shutdown_requested) {
+ break;
+ }
}
- }
/* Wait up to one seconds. */
tv.tv_sec = 0;
@@ -370,14 +370,19 @@
#endif
main_loop_wait(0);
-
+#ifdef APIC_SUPPORT
+ ioapic_update_EOI();
+#endif
cpu_timer_handler(env);
if (env->interrupt_request & CPU_INTERRUPT_HARD) {
env->interrupt_request &= ~CPU_INTERRUPT_HARD;
vector = cpu_get_pic_interrupt(env);
do_interrupt(env, vector);
}
-
+#ifdef APIC_SUPPORT
+ if (ioapic_has_intr())
+ do_ioapic();
+#endif
if (env->send_event) {
int ret;
ret = xc_evtchn_send(xc_handle, ioreq_port);
diff -r 96a4c0de6e53 -r 2d6fd3bba3c2 xen/include/asm-x86/vmx.h
--- a/xen/include/asm-x86/vmx.h Thu Jun 30 04:32:55 2005
+++ b/xen/include/asm-x86/vmx.h Thu Jun 30 05:24:52 2005
@@ -339,14 +339,19 @@
return (cr0 & X86_CR0_PE) && (cr0 & X86_CR0_PG);
}
+static inline shared_iopage_t *get_sp(struct domain *d)
+{
+ return (shared_iopage_t *) d->arch.vmx_platform.shared_page_va;
+}
+
static inline vcpu_iodata_t *get_vio(struct domain *d, unsigned long cpu)
{
- return &((shared_iopage_t *)
d->arch.vmx_platform.shared_page_va)->vcpu_iodata[cpu];
+ return &get_sp(d)->vcpu_iodata[cpu];
}
static inline int iopacket_port(struct domain *d)
{
- return ((shared_iopage_t *)
d->arch.vmx_platform.shared_page_va)->sp_global.eport;
+ return get_sp(d)->sp_global.eport;
}
#endif /* __ASM_X86_VMX_H__ */
diff -r 96a4c0de6e53 -r 2d6fd3bba3c2 xen/arch/x86/vmx_vmcs.c
--- a/xen/arch/x86/vmx_vmcs.c Thu Jun 30 04:32:55 2005
+++ b/xen/arch/x86/vmx_vmcs.c Thu Jun 30 05:24:52 2005
@@ -153,6 +153,8 @@
p = map_domain_page(mpfn);
d->domain->arch.vmx_platform.shared_page_va = (unsigned long)p;
+ VMX_DBG_LOG(DBG_LEVEL_1, "eport: %x\n", iopacket_port(d->domain));
+
clear_bit(iopacket_port(d->domain),
&d->domain->shared_info->evtchn_mask[0]);
diff -r 96a4c0de6e53 -r 2d6fd3bba3c2 xen/include/asm-x86/vmx_virpit.h
--- a/xen/include/asm-x86/vmx_virpit.h Thu Jun 30 04:32:55 2005
+++ b/xen/include/asm-x86/vmx_virpit.h Thu Jun 30 05:24:52 2005
@@ -20,7 +20,7 @@
int vector; /* the pit irq vector */
unsigned int period; /* the frequency. e.g. 10ms*/
unsigned int channel; /* the pit channel, counter 0~2 */
- unsigned long *intr_bitmap;
+ u64 *intr_bitmap;
unsigned int pending_intr_nr; /* the couner for pending timer
interrupts */
unsigned long long inject_point; /* the time inject virt intr */
struct ac_timer pit_timer; /* periodic timer for mode 2*/
diff -r 96a4c0de6e53 -r 2d6fd3bba3c2 tools/ioemu/target-i386-dm/Makefile
--- a/tools/ioemu/target-i386-dm/Makefile Thu Jun 30 04:32:55 2005
+++ b/tools/ioemu/target-i386-dm/Makefile Thu Jun 30 05:24:52 2005
@@ -188,7 +188,7 @@
#########################################################
-DEFINES+=-D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE
+DEFINES+=-D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE
-DAPIC_SUPPORT
LIBS+=-lm -L../../libxc -lxc
ifndef CONFIG_USER_ONLY
LIBS+=-lz
@@ -246,6 +246,7 @@
# must use static linking to avoid leaving stuff in virtual address space
VL_OBJS=vl.o exec.o monitor.o osdep.o block.o readline.o pci.o console.o
VL_OBJS+=block-cow.o block-qcow.o block-vmdk.o block-cloop.o aes.o
+VL_OBJS+=ioapic.o
#VL_OBJS+= block-cloop.o
SOUND_HW = sb16.o
diff -r 96a4c0de6e53 -r 2d6fd3bba3c2 tools/ioemu/hw/pc.c
--- a/tools/ioemu/hw/pc.c Thu Jun 30 04:32:55 2005
+++ b/tools/ioemu/hw/pc.c Thu Jun 30 05:24:52 2005
@@ -543,6 +543,9 @@
pci_ne2000_init(pci_bus, &nd_table[i]);
}
pci_piix3_ide_init(pci_bus, bs_table);
+#ifdef APIC_SUPPORT
+ IOAPICInit();
+#endif
} else {
nb_nics1 = nb_nics;
if (nb_nics1 > NE2000_NB_MAX)
diff -r 96a4c0de6e53 -r 2d6fd3bba3c2 xen/arch/x86/vmx_io.c
--- a/xen/arch/x86/vmx_io.c Thu Jun 30 04:32:55 2005
+++ b/xen/arch/x86/vmx_io.c Thu Jun 30 05:24:52 2005
@@ -22,6 +22,7 @@
#include <xen/lib.h>
#include <xen/errno.h>
#include <xen/trace.h>
+#include <xen/event.h>
#include <asm/current.h>
#include <asm/cpufeature.h>
@@ -29,10 +30,12 @@
#include <asm/msr.h>
#include <asm/vmx.h>
#include <asm/vmx_vmcs.h>
-#include <xen/event.h>
-#include <public/io/ioreq.h>
#include <asm/vmx_platform.h>
#include <asm/vmx_virpit.h>
+#include <asm/apic.h>
+
+#include <public/io/ioreq.h>
+#include <public/io/vmx_vlapic.h>
#ifdef CONFIG_VMX
#if defined (__i386__)
@@ -515,38 +518,100 @@
return __fls(pintr[0]);
}
+#define BSP_CPU(d) (!(d->vcpu_id))
+static inline void clear_extint(struct vcpu *v)
+{
+ global_iodata_t *spg;
+ int i;
+ spg = &get_sp(v->domain)->sp_global;
+
+ for(i = 0; i < INTR_LEN; i++)
+ spg->pic_intr[i] = 0;
+}
+
+static inline void clear_highest_bit(struct vcpu *v, int vector)
+{
+ global_iodata_t *spg;
+
+ spg = &get_sp(v->domain)->sp_global;
+
+ clear_bit(vector, &spg->pic_intr[0]);
+}
+
+static inline int find_highest_pic_irq(struct vcpu *v)
+{
+ u64 intr[INTR_LEN];
+ global_iodata_t *spg;
+ int i;
+
+ if(!BSP_CPU(v))
+ return -1;
+
+ spg = &get_sp(v->domain)->sp_global;
+
+ for(i = 0; i < INTR_LEN; i++){
+ intr[i] = spg->pic_intr[i] & ~spg->pic_mask[i];
+ }
+
+ return find_highest_irq((u32 *)&intr[0]);
+}
+
/*
* Return 0-255 for pending irq.
* -1 when no pending.
*/
-static inline int find_highest_pending_irq(struct vcpu *d)
-{
- vcpu_iodata_t *vio;
-
- vio = get_vio(d->domain, d->vcpu_id);
-
- if (vio == 0) {
- VMX_DBG_LOG(DBG_LEVEL_1,
- "bad shared page: %lx", (unsigned long) vio);
- domain_crash_synchronous();
- }
-
- return find_highest_irq((unsigned int *)&vio->vp_intr[0]);
-}
-
-static inline void clear_highest_bit(struct vcpu *d, int vector)
-{
- vcpu_iodata_t *vio;
-
- vio = get_vio(d->domain, d->vcpu_id);
-
- if (vio == 0) {
- VMX_DBG_LOG(DBG_LEVEL_1,
- "bad shared page: %lx", (unsigned long) vio);
- domain_crash_synchronous();
- }
-
- clear_bit(vector, &vio->vp_intr[0]);
+static inline int find_highest_pending_irq(struct vcpu *v, int *type)
+{
+ int result = -1;
+ if ((result = find_highest_pic_irq(v)) != -1){
+ *type = VLAPIC_DELIV_MODE_EXT;
+ return result;
+ }
+ return result;
+}
+
+static inline void
+interrupt_post_injection(struct vcpu * v, int vector, int type)
+{
+ struct vmx_virpit_t *vpit = &(v->domain->arch.vmx_platform.vmx_pit);
+ switch(type)
+ {
+ case VLAPIC_DELIV_MODE_EXT:
+ if (vpit->pending_intr_nr && vector == vpit->vector)
+ vpit->pending_intr_nr--;
+ else
+ clear_highest_bit(v, vector);
+
+ if (vector == vpit->vector && !vpit->first_injected){
+ vpit->first_injected = 1;
+ vpit->pending_intr_nr = 0;
+ }
+ if (vector == vpit->vector)
+ vpit->inject_point = NOW();
+ break;
+
+ default:
+ printk("Not support interrupt type\n");
+ break;
+ }
+}
+
+static inline void
+enable_irq_window(unsigned long cpu_exec_control)
+{
+ if (!(cpu_exec_control & CPU_BASED_VIRTUAL_INTR_PENDING)) {
+ cpu_exec_control |= CPU_BASED_VIRTUAL_INTR_PENDING;
+ __vmwrite(CPU_BASED_VM_EXEC_CONTROL, cpu_exec_control);
+ }
+}
+
+static inline void
+disable_irq_window(unsigned long cpu_exec_control)
+{
+ if ( cpu_exec_control & CPU_BASED_VIRTUAL_INTR_PENDING ) {
+ cpu_exec_control &= ~CPU_BASED_VIRTUAL_INTR_PENDING;
+ __vmwrite(CPU_BASED_VM_EXEC_CONTROL, cpu_exec_control);
+ }
}
static inline int irq_masked(unsigned long eflags)
@@ -554,50 +619,68 @@
return ((eflags & X86_EFLAGS_IF) == 0);
}
-void vmx_intr_assist(struct vcpu *d)
-{
- int highest_vector = find_highest_pending_irq(d);
- unsigned long intr_fields, eflags;
- struct vmx_virpit_t *vpit = &(d->domain->arch.vmx_platform.vmx_pit);
-
- if (highest_vector == -1)
+void vmx_intr_assist(struct vcpu *v)
+{
+ int intr_type;
+ int highest_vector = find_highest_pending_irq(v, &intr_type);
+ unsigned long intr_fields, eflags, interruptibility, cpu_exec_control;
+
+ __vmread(CPU_BASED_VM_EXEC_CONTROL, &cpu_exec_control);
+
+ if (highest_vector == -1) {
+ disable_irq_window(cpu_exec_control);
return;
-
- __vmread(VM_ENTRY_INTR_INFO_FIELD, &intr_fields);
- if (intr_fields & INTR_INFO_VALID_MASK) {
- VMX_DBG_LOG(DBG_LEVEL_1, "vmx_intr_assist: intr_fields: %lx",
- intr_fields);
- return;
- }
-
- __vmread(GUEST_RFLAGS, &eflags);
- if (irq_masked(eflags)) {
- VMX_DBG_LOG(DBG_LEVEL_1, "guesting pending: %x, eflags: %lx",
- highest_vector, eflags);
- return;
- }
-
- if (vpit->pending_intr_nr && highest_vector == vpit->vector)
- vpit->pending_intr_nr--;
- else
- clear_highest_bit(d, highest_vector);
-
- /* close the window between guest PIT initialization and sti */
- if (highest_vector == vpit->vector && !vpit->first_injected){
- vpit->first_injected = 1;
- vpit->pending_intr_nr = 0;
- }
-
- intr_fields = (INTR_INFO_VALID_MASK | INTR_TYPE_EXT_INTR | highest_vector);
- __vmwrite(VM_ENTRY_INTR_INFO_FIELD, intr_fields);
-
- __vmwrite(GUEST_INTERRUPTIBILITY_INFO, 0);
-
- TRACE_3D(TRC_VMX_INT, d->domain->domain_id, highest_vector, 0);
- if (highest_vector == vpit->vector)
- vpit->inject_point = NOW();
-
- return;
+ }
+
+ __vmread(VM_ENTRY_INTR_INFO_FIELD, &intr_fields);
+
+ if (intr_fields & INTR_INFO_VALID_MASK) {
+ VMX_DBG_LOG(DBG_LEVEL_1, "vmx_intr_assist: intr_fields: %lx",
+ intr_fields);
+ return;
+ }
+
+ __vmread(GUEST_INTERRUPTIBILITY_INFO, &interruptibility);
+
+ if (interruptibility) {
+ enable_irq_window(cpu_exec_control);
+ VMX_DBG_LOG(DBG_LEVEL_1, "guesting pending: %x, interruptibility:
%lx",
+ highest_vector, interruptibility);
+ return;
+ }
+
+ __vmread(GUEST_RFLAGS, &eflags);
+
+ switch (intr_type) {
+ case VLAPIC_DELIV_MODE_EXT:
+ if (irq_masked(eflags)) {
+ enable_irq_window(cpu_exec_control);
+ VMX_DBG_LOG(DBG_LEVEL_1, "guesting pending: %x, eflags: %lx",
+ highest_vector, eflags);
+ return;
+ }
+
+ intr_fields = (INTR_INFO_VALID_MASK | INTR_TYPE_EXT_INTR
+ | highest_vector);
+ __vmwrite(VM_ENTRY_INTR_INFO_FIELD, intr_fields);
+ __vmwrite(GUEST_INTERRUPTIBILITY_INFO, 0);
+
+ TRACE_3D(TRC_VMX_INT, v->domain->domain_id, highest_vector, 0);
+ break;
+ case VLAPIC_DELIV_MODE_FIXED:
+ case VLAPIC_DELIV_MODE_LPRI:
+ case VLAPIC_DELIV_MODE_SMI:
+ case VLAPIC_DELIV_MODE_NMI:
+ case VLAPIC_DELIV_MODE_INIT:
+ case VLAPIC_DELIV_MODE_STARTUP:
+ default:
+ printk("Unsupported interrupt type\n");
+ BUG();
+ break;
+ }
+
+ interrupt_post_injection(v, highest_vector, intr_type);
+ return;
}
void vmx_do_resume(struct vcpu *d)
diff -r 96a4c0de6e53 -r 2d6fd3bba3c2 xen/arch/x86/vmx_intercept.c
--- a/xen/arch/x86/vmx_intercept.c Thu Jun 30 04:32:55 2005
+++ b/xen/arch/x86/vmx_intercept.c Thu Jun 30 05:24:52 2005
@@ -213,7 +213,8 @@
{
vcpu_iodata_t * vio = get_vio(d->domain, d->vcpu_id);
ioreq_t *p = &vio->vp_ioreq;
- unsigned long *intr = &(vio->vp_intr[0]);
+ shared_iopage_t *sp = get_sp(d->domain);
+ u64 *intr = &(sp->sp_global.pic_intr[0]);
struct vmx_virpit_t *vpit = &(d->domain->arch.vmx_platform.vmx_pit);
int rw_mode;
diff -r 96a4c0de6e53 -r 2d6fd3bba3c2 tools/ioemu/hw/pci.c
--- a/tools/ioemu/hw/pci.c Thu Jun 30 04:32:55 2005
+++ b/tools/ioemu/hw/pci.c Thu Jun 30 05:24:52 2005
@@ -53,6 +53,7 @@
static int pci_irq_index;
static uint32_t pci_irq_levels[4][PCI_IRQ_WORDS];
static PCIBus *first_bus;
+extern FILE *logfile;
static PCIBus *pci_register_bus(void)
{
@@ -569,13 +570,26 @@
pci_conf[0xae] = 0x00;
}
+#define PIIX_CONFIG_XBCS 0x4f
+void piix3_write_config(PCIDevice *d,
+ uint32_t address, uint32_t val, int len)
+{
+ if ((PIIX3State *)d != piix3_state){
+ fprintf(logfile, "piix3_write_config: error PCIDevice\n");
+ return;
+ }
+
+ pci_default_write_config(d, address, val, len);
+}
+
+
void piix3_init(PCIBus *bus)
{
PIIX3State *d;
uint8_t *pci_conf;
d = (PIIX3State *)pci_register_device(bus, "PIIX3", sizeof(PIIX3State),
- -1, NULL, NULL);
+ -1, NULL, piix3_write_config);
register_savevm("PIIX3", 0, 1, generic_pci_save, generic_pci_load, d);
piix3_state = d;
diff -r 96a4c0de6e53 -r 2d6fd3bba3c2 xen/include/public/io/ioreq.h
--- a/xen/include/public/io/ioreq.h Thu Jun 30 04:32:55 2005
+++ b/xen/include/public/io/ioreq.h Thu Jun 30 05:24:52 2005
@@ -49,14 +49,11 @@
#define MAX_VECTOR 256
#define BITS_PER_BYTE 8
-#define INTR_LEN (MAX_VECTOR/(BITS_PER_BYTE * sizeof(unsigned long)))
+#define INTR_LEN (MAX_VECTOR/(BITS_PER_BYTE * sizeof(u64)))
-/* We only track the master PIC state here */
typedef struct {
- uint16_t irr; /* interrupt request register */
- uint16_t imr; /* interrupt mask register */
- uint16_t isr; /* interrupt service register */
-
+ u64 pic_intr[INTR_LEN];
+ u64 pic_mask[INTR_LEN];
int eport; /* Event channel port */
} global_iodata_t;
diff -r 96a4c0de6e53 -r 2d6fd3bba3c2 tools/ioemu/hw/ioapic.c
--- /dev/null Thu Jun 30 04:32:55 2005
+++ b/tools/ioemu/hw/ioapic.c Thu Jun 30 05:24:52 2005
@@ -0,0 +1,704 @@
+/////////////////////////////////////////////////////////////////////////
+//
+// Copyright (C) 2001 MandrakeSoft S.A.
+//
+// MandrakeSoft S.A.
+// 43, rue d'Aboukir
+// 75002 Paris - France
+// http://www.linux-mandrake.com/
+// http://www.mandrakesoft.com/
+//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public
+// License as published by the Free Software Foundation; either
+// version 2 of the License, or (at your option) any later version.
+//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+// Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+//
+
+#include "vl.h"
+#include "ioapic.h"
+
+#ifdef __OS
+#undef __OS
+#endif
+#ifdef __i386__
+#define __OS "l"
+#else
+#define __OS "q"
+#endif
+#define ADDR (*(volatile long *) addr)
+
+#ifdef IOAPIC_DEBUG
+#define IOAPIC_LOG(a...) fprintf(logfile, ##a)
+#else
+#define IOAPIC_LOG(a...)
+#endif
+
+static IOAPICState *ioapic;
+
+#define IOAPIC_ERR(a...) fprintf(logfile, ##a)
+static __inline__ int test_and_set_bit(long nr, volatile void * addr)
+{
+ long oldbit;
+
+ __asm__ __volatile__(
+ "bts"__OS" %2,%1\n\tsbb"__OS" %0,%0"
+ :"=r" (oldbit),"=m" (ADDR)
+ :"Ir" (nr) : "memory");
+ return oldbit;
+}
+
+static __inline__ int test_and_clear_bit(long nr, volatile void * addr)
+{
+ long oldbit;
+
+ __asm__ __volatile__( LOCK_PREFIX
+ "btr"__OS" %2,%1\n\tsbb"__OS" %0,%0"
+ :"=r" (oldbit),"=m" (ADDR)
+ :"dIr" (nr) : "memory");
+ return oldbit;
+}
+
+static __inline__ void clear_bit(long nr, volatile void * addr)
+{
+ __asm__ __volatile__(
+ "btr"__OS" %1,%0"
+ :"=m" (ADDR)
+ :"Ir" (nr));
+}
+
+static inline
+void get_shareinfo_apic_msg(vlapic_info *share_info){
+ while(test_and_set_bit(VL_STATE_MSG_LOCK, &share_info->vl_state)){};
+}
+
+static inline
+void put_shareinfo_apic_msg(vlapic_info *share_info){
+ clear_bit(VL_STATE_MSG_LOCK, &share_info->vl_state);
+}
+static inline
+void get_shareinfo_eoi(vlapic_info *share_info){
+ while(test_and_set_bit(VL_STATE_EOI_LOCK, &share_info->vl_state)){};
+}
+
+static inline
+void put_shareinfo_eoi(vlapic_info *share_info){
+ clear_bit(VL_STATE_EOI_LOCK, &share_info->vl_state);
+}
+
+
+static inline
+void get_shareinfo_ext(vlapic_info *share_info){
+ while(test_and_set_bit(VL_STATE_EXT_LOCK, &share_info->vl_state));
+}
+
+static inline
+void put_shareinfo_ext(vlapic_info *share_info){
+ clear_bit(VL_STATE_EXT_LOCK, &share_info->vl_state);
+}
+
+
+static __inline__ int test_bit(int nr, uint32_t value){
+ return value & (1 << nr);
+}
+
+static void ioapic_enable(IOAPICState *s, uint8_t enable)
+{
+ if (!enable ^ IOAPICEnabled(s)) return;
+ if(enable)
+ s->flags |= IOAPIC_ENABLE_FLAG;
+ else
+ s->flags &= ~IOAPIC_ENABLE_FLAG;
+}
+
+#ifdef IOAPIC_DEBUG
+static void
+ioapic_dump_redir(IOAPICState *s, uint8_t entry)
+{
+ if (!s)
+ return;
+
+ RedirStatus redir = s->redirtbl[entry];
+
+ fprintf(logfile, "entry %x: "
+ "vector %x deliver_mod %x destmode %x delivestatus %x "
+ "polarity %x remote_irr %x trigmod %x mask %x dest_id %x\n",
+ entry,
+ redir.RedirForm.vector, redir.RedirForm.deliver_mode,
+ redir.RedirForm.destmode, redir.RedirForm.delivestatus,
+ redir.RedirForm.polarity, redir.RedirForm.remoteirr,
+ redir.RedirForm.trigmod, redir.RedirForm.mask,
+ redir.RedirForm.dest_id);
+}
+
+static void
+ioapic_dump_shareinfo(IOAPICState *s , int number)
+{
+ if (!s || !s->lapic_info[number])
+ return;
+ vlapic_info *m = s->lapic_info[number];
+ IOAPIC_LOG("lapic_info %x : "
+ "vl_lapic_id %x vl_logical_dest %x vl_dest_format %x vl_arb_id %x\n",
+ number, m->vl_lapic_id, m->vl_logical_dest, m->vl_dest_format,
m->vl_arb_id );
+}
+#endif
+
+static void
+ioapic_save(QEMUFile* f,void* opaque)
+{
+ IOAPIC_ERR("no implementation for ioapic_save\n");
+}
+
+static
+int ioapic_load(QEMUFile* f,void* opaque,int version_id)
+{
+ IOAPIC_ERR("no implementation for ioapic_load\n");
+ return 0;
+}
+
+uint32_t
+ioapic_mem_readb(void *opaque, target_phys_addr_t addr)
+{
+ IOAPIC_ERR("ioapic_mem_readb\n");
+ return 0;
+}
+
+uint32_t
+ioapic_mem_readw(void *opaque, target_phys_addr_t addr)
+{
+ IOAPIC_ERR("ioapic_mem_readw\n");
+ return 0;
+}
+
+static
+void ioapic_mem_writeb(void *opaque, target_phys_addr_t addr, uint32_t val)
+{
+ IOAPIC_ERR("ioapic_mem_writeb\n");
+}
+
+static
+void ioapic_mem_writew(void *opaque, target_phys_addr_t addr, uint32_t val)
+{
+ IOAPIC_ERR("ioapic_mem_writew\n");
+}
+
+static
+uint32_t ioapic_mem_readl(void *opaque, target_phys_addr_t addr)
+{
+ unsigned short ioregsel;
+ IOAPICState *s = opaque;
+ uint32_t result = 0;
+ uint32_t redir_index = 0;
+ uint64_t redir_content = 0;
+
+ IOAPIC_LOG("apic_mem_readl addr %x\n", addr);
+ if (!s){
+ IOAPIC_ERR("null pointer for apic_mem_readl\n");
+ return result;
+ }
+
+ addr &= 0xff;
+ if(addr == 0x00){
+ result = s->ioregsel;
+ return result;
+ }else if (addr != 0x10){
+ IOAPIC_ERR("apic_mem_readl address error\n");
+ return result;
+ }
+
+ ioregsel = s->ioregsel;
+
+ switch (ioregsel){
+ case IOAPIC_REG_APIC_ID:
+ result = ((s->id & 0xf) << 24);
+ break;
+ case IOAPIC_REG_VERSION:
+ result = ((((IOAPIC_NUM_PINS-1) & 0xff) << 16)
+ | (IOAPIC_VERSION_ID & 0x0f));
+ break;
+ case IOAPIC_REG_ARB_ID:
+ //FIXME
+ result = ((s->id & 0xf) << 24);
+ break;
+ default:
+ redir_index = (ioregsel - 0x10) >> 1;
+ if (redir_index >= 0 && redir_index < IOAPIC_NUM_PINS){
+ redir_content = s->redirtbl[redir_index].value;
+ result = (ioregsel & 0x1)?
+ (redir_content >> 32) & 0xffffffff :
+ redir_content & 0xffffffff;
+ }else{
+ IOAPIC_ERR(
+ "upic_mem_readl:undefined ioregsel %x\n",
+ ioregsel);
+ }
+ }
+ return result;
+}
+
+static
+void ioapic_mem_writel(void *opaque, target_phys_addr_t addr, uint32_t val)
+{
+ IOAPICState *s = opaque;
+ uint32_t redir_index = 0;
+ uint64_t redir_content;
+
+ IOAPIC_LOG("apic_mem_writel addr %x val %x\n", addr, val);
+
+ if (!s){
+ IOAPIC_ERR("apic_mem_writel: null opaque\n");
+ return;
+ }
+
+ addr &= 0xff;
+ if (addr == 0x00){
+ s->ioregsel = val;
+ return;
+ }else if (addr != 0x10){
+ IOAPIC_ERR("apic_mem_writel: unsupported address\n");
+ }
+
+ switch (s->ioregsel){
+ case IOAPIC_REG_APIC_ID:
+ s->id = (val >> 24) & 0xf;
+ break;
+ case IOAPIC_REG_VERSION:
+ IOAPIC_ERR("apic_mem_writel: version register read only\n");
+ break;
+ case IOAPIC_REG_ARB_ID:
+ s->arb_id = val;
+ break;
+ default:
+ redir_index = (s->ioregsel - 0x10) >> 1;
+// IOAPIC_LOG("apic_mem_write: change redir :index %x before %lx,
val %x\n", redir_index, s->redirtbl[redir_index].value, val);
+ if (redir_index >= 0 && redir_index < IOAPIC_NUM_PINS){
+ redir_content = s->redirtbl[redir_index].value;
+ if (s->ioregsel & 0x1)
+ redir_content = (((uint64_t)val & 0xffffffff) << 32) |
(redir_content & 0xffffffff);
+ else
+ redir_content = ((redir_content >> 32) << 32) | (val &
0xffffffff);
+ s->redirtbl[redir_index].value = redir_content;
+ }else {
+ IOAPIC_ERR("apic_mem_writel: error register\n");
+ }
+ //IOAPIC_LOG("after value is %lx\n",
s->redirtbl[redir_index].value);
+ }
+}
+
+static CPUReadMemoryFunc *ioapic_mem_read[3] = {
+ ioapic_mem_readb,
+ ioapic_mem_readw,
+ ioapic_mem_readl,
+};
+
+static CPUWriteMemoryFunc *ioapic_mem_write[3] = {
+ ioapic_mem_writeb,
+ ioapic_mem_writew,
+ ioapic_mem_writel,
+};
+
+void
+IOAPICReset(IOAPICState *s)
+{
+ int i;
+ if (!s)
+ return ;
+
+ memset(s, 0, sizeof(IOAPICState));
+
+ for (i = 0; i < IOAPIC_NUM_PINS; i++)
+ s->redirtbl[i].RedirForm.mask = 0x1;
+// IOAPIC_LOG("after Reset %lx\n", s->redirtbl[0].value);
+}
+
+void
+ioapic_update_config(IOAPICState *s, unsigned long address, uint8_t enable)
+{
+ int ioapic_mem;
+ if (!s)
+ return;
+
+ ioapic_enable(s, enable);
+
+ if (address != s->base_address){
+ ioapic_mem = cpu_register_io_memory(0, ioapic_mem_read,
ioapic_mem_write, s);
+ cpu_register_physical_memory(address, IOAPIC_MEM_LENGTH, ioapic_mem);
+ s->base_address = ioapic_mem;
+ }
+}
+
+#define direct_intr(mode) \
+ (mode == VLAPIC_DELIV_MODE_SMI || \
+ mode == VLAPIC_DELIV_MODE_NMI || \
+ mode == VLAPIC_DELIV_MODE_INIT ||\
+ mode == VLAPIC_DELIV_MODE_STARTUP)
+
+int
+ioapic_inj_irq(IOAPICState *s, uint8_t dest, uint8_t vector, uint8_t
trig_mode, uint8_t delivery_mode)
+{
+ int msg_count;
+ if (!s || !s->lapic_info[dest]){
+ IOAPIC_ERR("ioapic_inj_irq NULL parameter\n");
+ return 0;
+ }
+ IOAPIC_LOG("ioapic_inj_irq %d , trig %d delive mode %d\n",
+ vector, trig_mode, delivery_mode);
+ switch(delivery_mode){
+ case VLAPIC_DELIV_MODE_FIXED:
+ case VLAPIC_DELIV_MODE_LPRI:
+ get_shareinfo_apic_msg(s->lapic_info[dest]);
+ msg_count = s->lapic_info[dest]->apic_msg_count;
+ s->lapic_info[dest]->vl_apic_msg[msg_count].deliv_mode =
delivery_mode;
+ s->lapic_info[dest]->vl_apic_msg[msg_count].level = trig_mode;
+ s->lapic_info[dest]->vl_apic_msg[msg_count].vector = vector;
+ s->lapic_info[dest]->vl_apic_msg[msg_count].vector = vector;
+ s->lapic_info[dest]->apic_msg_count ++;
+ put_shareinfo_apic_msg(s->lapic_info[dest]);
+ break;
+ case VLAPIC_DELIV_MODE_EXT:
+/* get_shareinfo_ext(s->lapic_info[dest]);
+ test_and_set_bit(vector, &s->lapic_info[dest]->vl_ext_intr[0]);
+ put_shareinfo_ext(s->lapic_info[dest]);*/
+ IOAPIC_ERR("<ioapic_inj_irq> Ext interrupt\n");
+ return 0;
+ default:
+ IOAPIC_ERR("<ioapic_inj_irq> error delivery mode\n");
+ break;
+ }
+ return 1;
+}
+
+int
+ioapic_match_logical_addr(IOAPICState *s, int number, uint8_t address)
+{
+ if(!s || !s->lapic_info[number]){
+ IOAPIC_ERR("ioapic_match_logical_addr NULL parameter: "
+ "number: %i s %p address %x\n",
+ number, s, address);
+ return 0;
+ }
+ IOAPIC_LOG("ioapic_match_logical_addr number %i address %x\n",
+ number, address);
+
+ if (((s->lapic_info[number]->vl_dest_format >> 28 ) & 0xf) != 0xf) {
+ IOAPIC_ERR("ioapic_match_logical_addr: cluster model not implemented
still%x"
+ ,s->lapic_info[number]->vl_dest_format);
+#ifdef IOAPIC_DEBUG
+ ioapic_dump_shareinfo(s, number);
+#endif
+ return 0;
+ }
+ return ((address & ((s->lapic_info[number]->vl_logical_dest >> 24) &
0xff)) != 0);
+}
+
+int
+ioapic_get_apr_lowpri(IOAPICState *s, int number)
+{
+ if(!s || !s->lapic_info[number]){
+ IOAPIC_ERR("ioapic_get_apr_lowpri NULL parameter\n");
+ return 0;
+ }
+ return s->lapic_info[number]->vl_arb_id;
+}
+
+uint32_t
+ioapic_get_delivery_bitmask(IOAPICState *s,
+uint8_t dest, uint8_t dest_mode, uint8_t vector, uint8_t delivery_mode)
+{
+ uint32_t mask = 0;
+ int low_priority = 256, selected = -1, i;
+ fprintf(logfile, "<ioapic_get_delivery_bitmask>: dest %d dest_mode %d"
+ "vector %d del_mode %d, lapic_count %d\n",
+ dest, dest_mode, vector, delivery_mode, s->lapic_count);
+ if (!s) return mask;
+ if (dest_mode == 0) { //Physical mode
+ if ((dest < s->lapic_count) && s->lapic_info[dest])
+ mask = 1 << dest;
+ }
+ else {
+ /* logical destination. call match_logical_addr for each APIC. */
+ if (dest == 0) return 0;
+ for (i=0; i< s->lapic_count; i++) {
+ //FIXME focus one, since no such issue on IPF, shoudl we add it?
+ if ( s->lapic_info[i] && ioapic_match_logical_addr(s, i, dest)){
+ if (delivery_mode != APIC_DM_LOWPRI)
+ mask |= (1<<i);
+ else {
+ if (low_priority > ioapic_get_apr_lowpri(s, i)){
+ low_priority = ioapic_get_apr_lowpri(s, i);
+ selected = i;
+ }
+ fprintf(logfile, "%d low_priority %d apr %d select %d\n",
+ i, low_priority, ioapic_get_apr_lowpri(s, i), selected);
+ }
+ }
+ }
+ if (delivery_mode == APIC_DM_LOWPRI && (selected != -1))
+ mask |= (1<< selected);
+ }
+ return mask;
+}
+
+void
+ioapic_deliver(IOAPICState *s, int irqno){
+ uint8_t dest = s->redirtbl[irqno].RedirForm.dest_id;
+ uint8_t dest_mode = s->redirtbl[irqno].RedirForm.destmode;
+ uint8_t delivery_mode = s->redirtbl[irqno].RedirForm.deliver_mode;
+ uint8_t vector = s->redirtbl[irqno].RedirForm.vector;
+ uint8_t trig_mode = s->redirtbl[irqno].RedirForm.trigmod;
+ uint8_t bit;
+ uint32_t deliver_bitmask;
+
+ IOAPIC_LOG("IOAPIC deliver: "
+ "dest %x dest_mode %x delivery_mode %x vector %x trig_mode %x\n",
+ dest, dest_mode, delivery_mode, vector, trig_mode);
+
+ deliver_bitmask =
+ ioapic_get_delivery_bitmask(s, dest, dest_mode, vector, delivery_mode);
+
+ IOAPIC_LOG("ioapic_get_delivery_bitmask return %x\n", deliver_bitmask);
+ if (!deliver_bitmask){
+ IOAPIC_ERR("Ioapic deliver, no target on destination\n");
+ return ;
+ }
+
+ switch (delivery_mode){
+ case VLAPIC_DELIV_MODE_FIXED:
+ case VLAPIC_DELIV_MODE_LPRI:
+ case VLAPIC_DELIV_MODE_EXT:
+ break;
+ case VLAPIC_DELIV_MODE_SMI:
+ case VLAPIC_DELIV_MODE_NMI:
+ case VLAPIC_DELIV_MODE_INIT:
+ case VLAPIC_DELIV_MODE_STARTUP:
+ default:
+ IOAPIC_ERR("Not support delivey mode %d\n", delivery_mode);
+ return ;
+ }
+
+ for (bit = 0; bit < s->lapic_count; bit++){
+ if (deliver_bitmask & (1 << bit)){
+ if (s->lapic_info[bit]){
+ ioapic_inj_irq(s, bit, vector, trig_mode, delivery_mode);
+ }
+ }
+ }
+}
+
+static inline int __fls(u32 word)
+{
+ int bit;
+ __asm__("bsrl %1,%0"
+ :"=r" (bit)
+ :"rm" (word));
+ return word ? bit : -1;
+}
+
+#if 0
+static __inline__ int find_highest_bit(unsigned long *data, int length){
+ while(length && !data[--length]);
+ return __fls(data[length]) + 32 * length;
+}
+#endif
+int
+ioapic_get_highest_irq(IOAPICState *s){
+ uint32_t irqs;
+ if (!s)
+ return -1;
+ irqs = s->irr & ~s->isr;
+ return __fls(irqs);
+}
+
+
+void
+service_ioapic(IOAPICState *s){
+ int irqno;
+
+ while((irqno = ioapic_get_highest_irq(s)) != -1){
+ IOAPIC_LOG("service_ioapic: highest irqno %x\n", irqno);
+
+ if (!s->redirtbl[irqno].RedirForm.mask)
+ ioapic_deliver(s, irqno);
+
+ if (s->redirtbl[irqno].RedirForm.trigmod == IOAPIC_LEVEL_TRIGGER){
+ s->isr |= (1 << irqno);
+ }
+ // clear_bit(irqno, &s->irr);
+ s->irr &= ~(1 << irqno);
+ }
+}
+
+void
+ioapic_update_irq(IOAPICState *s)
+{
+ s->INTR = 1;
+}
+
+void
+ioapic_set_irq(IOAPICState *s, int irq, int level)
+{
+ IOAPIC_LOG("ioapic_set_irq %x %x\n", irq, level);
+
+ /* Timer interrupt implemented on HV side */
+ if(irq == 0x0) return;
+ if (!s){
+ fprintf(logfile, "ioapic_set_irq null parameter\n");
+ return;
+ }
+ if (!IOAPICEnabled(s) || s->redirtbl[irq].RedirForm.mask)
+ return;
+#ifdef IOAPIC_DEBUG
+ ioapic_dump_redir(s, irq);
+#endif
+ if (irq >= 0 && irq < IOAPIC_NUM_PINS){
+ uint32_t bit = 1 << irq;
+ if (s->redirtbl[irq].RedirForm.trigmod == IOAPIC_LEVEL_TRIGGER){
+ if(level)
+ s->irr |= bit;
+ else
+ s->irr &= ~bit;
+ }else{
+ if(level)
+ /* XXX No irr clear for edge interrupt */
+ s->irr |= bit;
+ }
+ }
+
+ ioapic_update_irq(s);
+}
+
+void
+ioapic_legacy_irq(int irq, int level)
+{
+ ioapic_set_irq(ioapic, irq, level);
+}
+
+static inline int find_highest_bit(u32 *data, int length){
+ while(length && !data[--length]);
+ return __fls(data[length]) + 32 * length;
+}
+
+int
+get_redir_num(IOAPICState *s, int vector){
+ int i = 0;
+ if(!s){
+ IOAPIC_ERR("Null parameter for get_redir_num\n");
+ return -1;
+ }
+ for(; i < IOAPIC_NUM_PINS-1; i++){
+ if (s->redirtbl[i].RedirForm.vector == vector)
+ return i;
+ }
+ return -1;
+}
+
+void
+ioapic_update_EOI()
+{
+ int i = 0;
+ uint32_t isr_info ;
+ uint32_t vector;
+ IOAPICState *s = ioapic;
+
+ isr_info = s->isr;
+
+ for (i = 0; i < s->lapic_count; i++){
+ if (!s->lapic_info[i] ||
+ !test_bit(VL_STATE_EOI, s->lapic_info[i]->vl_state))
+ continue;
+ get_shareinfo_eoi(s->lapic_info[i]);
+ while((vector = find_highest_bit((unsigned int
*)&s->lapic_info[i]->vl_eoi[0],VLAPIC_INT_COUNT_32)) != -1){
+ int redir_num;
+ if ((redir_num = get_redir_num(s, vector)) == -1){
+ IOAPIC_ERR("Can't find redir item for %d EOI \n", vector);
+ continue;
+ }
+ if (!test_and_clear_bit(redir_num, &s->isr)){
+ IOAPIC_ERR("redir %d not set for %d EOI\n", redir_num,
vector);
+ continue;
+ }
+ clear_bit(vector, &s->lapic_info[i]->vl_eoi[0]);
+ }
+ clear_bit(VL_STATE_EOI, &s->lapic_info[i]->vl_state);
+ put_shareinfo_eoi(s->lapic_info[i]);
+ }
+}
+
+
+void
+ioapic_init_apic_info(IOAPICState *s)
+{
+#ifdef IOAPIC_DEBUG
+ fprintf(logfile, "ioapic_init_apic_info\n");
+ if (!s)
+ return;
+#endif
+
+#if 0
+ if (!vio || !(vio->vl_number)){
+ fprintf(logfile, "null vio or o vl number\n");
+ return;
+ }
+
+ for (i = 0; i < MAX_LAPIC_NUM; i++) s->lapic_info[i] = NULL;
+
+ s->lapic_count = vio->vl_number;
+ for (i = 0; i < vio->vl_number; i++)
+ s->lapic_info[i] = vio->vl_info + i;
+#endif
+
+}
+
+void
+ioapic_intack(IOAPICState *s)
+{
+#ifdef IOAPIC_DEBUG
+ if (!s){
+ fprintf(logfile, "ioapic_intack null parameter\n");
+ return;
+ }
+#endif
+ if (!s) s->INTR = 0;
+}
+
+int
+ioapic_has_intr()
+{
+ return ioapic->INTR;
+}
+
+void
+do_ioapic()
+{
+ service_ioapic(ioapic);
+ ioapic_intack(ioapic);
+}
+
+IOAPICState *
+IOAPICInit( )
+{
+ IOAPICState *s;
+
+ s = qemu_mallocz(sizeof(IOAPICState));
+ if (!s){
+ fprintf(logfile, "IOAPICInit: malloc failed\n");
+ return NULL;
+ }
+
+ IOAPICReset(s);
+ ioapic_init_apic_info(s);
+ register_savevm("ioapic", 0, 1, ioapic_save, ioapic_load, s);
+ /* Remove after GFW ready */
+ ioapic_update_config(s, 0xfec00000, 1);
+
+ ioapic = s;
+ return s;
+}
diff -r 96a4c0de6e53 -r 2d6fd3bba3c2 tools/ioemu/hw/ioapic.h
--- /dev/null Thu Jun 30 04:32:55 2005
+++ b/tools/ioemu/hw/ioapic.h Thu Jun 30 05:24:52 2005
@@ -0,0 +1,128 @@
+/////////////////////////////////////////////////////////////////////////
+//
+// Copyright (C) 2001 MandrakeSoft S.A.
+//
+// MandrakeSoft S.A.
+// 43, rue d'Aboukir
+// 75002 Paris - France
+// http://www.linux-mandrake.com/
+// http://www.mandrakesoft.com/
+//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public
+// License as published by the Free Software Foundation; either
+// version 2 of the License, or (at your option) any later version.
+//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+// Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+//
+
+#ifndef __IOAPIC_H
+#define __IOAPIC_H
+
+#include "xc.h"
+#include <io/ioreq.h>
+#include <io/vmx_vlapic.h>
+
+#define IOAPIC_NUM_PINS 24
+#define IOAPIC_VERSION_ID 0x11
+#define IOAPIC_LEVEL_TRIGGER 1
+#define APIC_DM_FIXED 0
+#define APIC_DM_LOWPRI 1
+
+
+
+#ifdef CONFIG_SMP
+#define LOCK_PREFIX "lock ; "
+#else
+#define LOCK_PREFIX ""
+#endif
+
+#ifdef __I386__
+#define __OS "q"
+#define __OP "r"
+#else
+#define __OS "l" /* Operation Suffix */
+#define __OP "e" /* Operand Prefix */
+#endif
+
+#define ADDR (*(volatile long *) addr)
+#if 0
+#endif
+extern void *shared_page;
+extern FILE *logfile;
+#ifdef __BIGENDIAN__
+typedef union RedirStatus
+{
+ uint64_t value;
+ struct {
+ uint8_t dest_id;
+ uint8_t reserved[4];
+ uint8_t reserve:7;
+ uint8_t mask:1; /* interrupt mask*/
+ uint8_t trigmod:1;
+ uint8_t remoteirr:1;
+ uint8_t polarity:1;
+ uint8_t delivestatus:1;
+ uint8_t destmode:1;
+ uint8_t deliver_mode:3;
+ uint8_t vector;
+ }RedirForm;
+}RedirStatus;
+#else
+typedef union RedirStatus
+{
+ uint64_t value;
+ struct {
+ uint8_t vector;
+ uint8_t deliver_mode:3;
+ uint8_t destmode:1;
+ uint8_t delivestatus:1;
+ uint8_t polarity:1;
+ uint8_t remoteirr:1;
+ uint8_t trigmod:1;
+ uint8_t mask:1; /* interrupt mask*/
+ uint8_t reserve:7;
+ uint8_t reserved[4];
+ uint8_t dest_id;
+ }RedirForm;
+}RedirStatus;
+#endif
+/*
+ * IOAPICState stands for a instance of a IOAPIC
+ */
+
+/* FIXME tmp before working with Local APIC */
+#define IOAPIC_MEM_LENGTH 0x100
+#define IOAPIC_ENABLE_MASK 0x0
+#define IOAPIC_ENABLE_FLAG (1 << IOAPIC_ENABLE_MASK)
+#define MAX_LAPIC_NUM 32
+
+struct IOAPICState{
+ uint32_t INTR;
+ uint32_t id;
+ uint32_t arb_id;
+ uint32_t flags;
+ unsigned long base_address;
+ uint32_t irr;
+ uint32_t isr; /* This is used for level trigger */
+ uint8_t vector_irr[256];
+ RedirStatus redirtbl[IOAPIC_NUM_PINS];
+ uint32_t ioregsel;
+ uint32_t lapic_count;
+ vlapic_info *lapic_info[MAX_LAPIC_NUM];
+};
+#define IOAPIC_REG_APIC_ID 0x0
+#define IOAPIC_REG_VERSION 0x1
+#define IOAPIC_REG_ARB_ID 0x2
+#define IOAPICEnabled(s) (s->flags & IOAPIC_ENABLE_FLAG)
+
+typedef struct IOAPICState IOAPICState;
+
+#endif
diff -r 96a4c0de6e53 -r 2d6fd3bba3c2 xen/include/public/io/vmx_vlapic.h
--- /dev/null Thu Jun 30 04:32:55 2005
+++ b/xen/include/public/io/vmx_vlapic.h Thu Jun 30 05:24:52 2005
@@ -0,0 +1,57 @@
+#ifndef _VMX_VLAPIC_H
+#define _VMX_VLAPIC_H
+
+/*
+ We extended one bit for PIC type
+ */
+#define VLAPIC_DELIV_MODE_FIXED 0x0
+#define VLAPIC_DELIV_MODE_LPRI 0x1
+#define VLAPIC_DELIV_MODE_SMI 0x2
+#define VLAPIC_DELIV_MODE_NMI 0x4
+#define VLAPIC_DELIV_MODE_INIT 0x5
+#define VLAPIC_DELIV_MODE_STARTUP 0x6
+#define VLAPIC_DELIV_MODE_EXT 0x7
+#define VLAPIC_DELIV_MODE_MASK 0x8
+
+#define VLAPIC_MSG_LEVEL 4
+
+#define INTR_EXT 0
+#define INTR_APIC 1
+#define INTR_LAPIC 2
+
+#define VL_STATE_EOI 1
+#define VL_STATE_EXT_LOCK 2
+#define VL_STATE_MSG_LOCK 3
+#define VL_STATE_EOI_LOCK 3
+
+#define VLOCAL_APIC_MAX_INTS 256
+#define VLAPIC_INT_COUNT (VLOCAL_APIC_MAX_INTS/(BITS_PER_BYTE *
sizeof(u64)))
+#define VLAPIC_INT_COUNT_32 (VLOCAL_APIC_MAX_INTS/(BITS_PER_BYTE *
sizeof(u32)))
+
+struct vapic_bus_message{
+ u8 deliv_mode:4; /* deliver mode, including fixed, LPRI, etc */
+ u8 level:1; /* level or edge */
+ u8 trig_mod:1; /* assert or disassert */
+ u8 reserved:2;
+ u8 vector;
+};
+
+typedef struct {
+ /* interrupt for PIC and ext type IOAPIC interrupt */
+ u64 vl_ext_intr[VLAPIC_INT_COUNT];
+ u64 vl_ext_intr_mask[VLAPIC_INT_COUNT];
+ u64 vl_apic_intr[VLAPIC_INT_COUNT];
+ u64 vl_apic_tmr[VLAPIC_INT_COUNT];
+ u64 vl_eoi[VLAPIC_INT_COUNT];
+ u32 vl_lapic_id;
+ u32 direct_intr;
+ u32 vl_apr;
+ u32 vl_logical_dest;
+ u32 vl_dest_format;
+ u32 vl_arb_id;
+ u32 vl_state;
+ u32 apic_msg_count;
+ struct vapic_bus_message vl_apic_msg[24];
+} vlapic_info;
+
+#endif /* _VMX_VLAPIC_H_ */
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