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Re: [Xen-devel] RFC: Nested VMX patch series 02: wrap APIs
On 06/01/11 05:51, Dong, Eddie wrote:
Wrap for common nested APIs.
Thx, Eddie
Signed-off-by: Qing He<qing.he@xxxxxxxxx>
Signed-off-by: Eddie Dong<eddie.dong@xxxxxxxxx>
diff -r 70ee714947fb xen/arch/x86/hvm/hvm.c
--- a/xen/arch/x86/hvm/hvm.c Sat May 28 09:49:25 2011 +0800
+++ b/xen/arch/x86/hvm/hvm.c Mon May 30 17:15:52 2011 +0800
@@ -3502,7 +3502,7 @@
/* Remove the check below once we have
* shadow-on-shadow.
*/
- if ( !paging_mode_hap(d)&& a.value )
+ if ( cpu_has_svm&& !paging_mode_hap(d)&& a.value )
rc = -EINVAL;
Are you going to implement shadow-on-shadow ?
Christoph
/* Set up NHVM state for any vcpus that are already up */
if ( !d->arch.hvm_domain.params[HVM_PARAM_NESTEDHVM] )
diff -r 70ee714947fb xen/arch/x86/hvm/vmx/Makefile
--- a/xen/arch/x86/hvm/vmx/Makefile Sat May 28 09:49:25 2011 +0800
+++ b/xen/arch/x86/hvm/vmx/Makefile Mon May 30 17:15:52 2011 +0800
@@ -4,3 +4,4 @@
obj-y += vmcs.o
obj-y += vmx.o
obj-y += vpmu_core2.o
+obj-y += vvmx.o
diff -r 70ee714947fb xen/arch/x86/hvm/vmx/intr.c
--- a/xen/arch/x86/hvm/vmx/intr.c Sat May 28 09:49:25 2011 +0800
+++ b/xen/arch/x86/hvm/vmx/intr.c Mon May 30 17:15:52 2011 +0800
@@ -109,6 +109,11 @@
}
}
+enum hvm_intblk nvmx_intr_blocked(struct vcpu *v)
+{
+ return hvm_intblk_none;
+}
+
asmlinkage void vmx_intr_assist(void)
{
struct hvm_intack intack;
diff -r 70ee714947fb xen/arch/x86/hvm/vmx/vmx.c
--- a/xen/arch/x86/hvm/vmx/vmx.c Sat May 28 09:49:25 2011 +0800
+++ b/xen/arch/x86/hvm/vmx/vmx.c Mon May 30 17:15:52 2011 +0800
@@ -1407,7 +1407,14 @@
.invlpg_intercept = vmx_invlpg_intercept,
.set_uc_mode = vmx_set_uc_mode,
.set_info_guest = vmx_set_info_guest,
- .set_rdtsc_exiting = vmx_set_rdtsc_exiting
+ .set_rdtsc_exiting = vmx_set_rdtsc_exiting,
+ .nhvm_vcpu_initialise = nvmx_vcpu_initialise,
+ .nhvm_vcpu_destroy = nvmx_vcpu_destroy,
+ .nhvm_vcpu_reset = nvmx_vcpu_reset,
+ .nhvm_vcpu_guestcr3 = nvmx_vcpu_guestcr3,
+ .nhvm_vcpu_hostcr3 = nvmx_vcpu_hostcr3,
+ .nhvm_vcpu_asid = nvmx_vcpu_asid,
+ .nhvm_intr_blocked = nvmx_intr_blocked
};
struct hvm_function_table * __init start_vmx(void)
diff -r 70ee714947fb xen/arch/x86/hvm/vmx/vvmx.c
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/xen/arch/x86/hvm/vmx/vvmx.c Mon May 30 17:15:52 2011 +0800
@@ -0,0 +1,93 @@
+/*
+ * vvmx.c: Support virtual VMX for nested virtualization.
+ *
+ * Copyright (c) 2010, Intel Corporation.
+ * Author: Qing He<qing.he@xxxxxxxxx>
+ * Eddie Dong<eddie.dong@xxxxxxxxx>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc., 59 Temple
+ * Place - Suite 330, Boston, MA 02111-1307 USA.
+ *
+ */
+
+#include<xen/config.h>
+#include<asm/types.h>
+#include<asm/p2m.h>
+#include<asm/hvm/vmx/vmx.h>
+#include<asm/hvm/vmx/vvmx.h>
+
+int nvmx_vcpu_initialise(struct vcpu *v)
+{
+ struct nestedvmx *nvmx =&vcpu_2_nvmx(v);
+ struct nestedvcpu *nvcpu =&vcpu_nestedhvm(v);
+
+ nvcpu->nv_n2vmcx = alloc_xenheap_page();
+ if ( !nvcpu->nv_n2vmcx )
+ {
+ gdprintk(XENLOG_ERR, "nest: allocation for shadow vmcs failed\n");
+ goto out;
+ }
+ nvmx->vmxon_region_pa = 0;
+ nvcpu->nv_vvmcx = NULL;
+ nvcpu->nv_vvmcxaddr = VMCX_EADDR;
+ nvmx->intr.intr_info = 0;
+ nvmx->intr.error_code = 0;
+ nvmx->iobitmap[0] = NULL;
+ nvmx->iobitmap[1] = NULL;
+ return 0;
+out:
+ return -ENOMEM;
+}
+
+void nvmx_vcpu_destroy(struct vcpu *v)
+{
+ struct nestedvcpu *nvcpu =&vcpu_nestedhvm(v);
+
+ if ( nvcpu->nv_n2vmcx ) {
+ __vmpclear(virt_to_maddr(nvcpu->nv_n2vmcx));
+ free_xenheap_page(nvcpu->nv_n2vmcx);
+ nvcpu->nv_n2vmcx = NULL;
+ }
+ if ( nvcpu->nv_vvmcx ) {
+ unmap_domain_page_global(nvcpu->nv_vvmcx);
+ nvcpu->nv_vvmcx == NULL;
+ }
+ nvcpu->nv_vvmcxaddr = VMCX_EADDR;
+}
+
+int nvmx_vcpu_reset(struct vcpu *v)
+{
+ return 0;
+}
+
+uint64_t nvmx_vcpu_guestcr3(struct vcpu *v)
+{
+ /* TODO */
+ ASSERT(0);
+ return 0;
+}
+
+uint64_t nvmx_vcpu_hostcr3(struct vcpu *v)
+{
+ /* TODO */
+ ASSERT(0);
+ return 0;
+}
+
+uint32_t nvmx_vcpu_asid(struct vcpu *v)
+{
+ /* TODO */
+ ASSERT(0);
+ return 0;
+}
+
diff -r 70ee714947fb xen/include/asm-x86/hvm/vmx/vvmx.h
--- a/xen/include/asm-x86/hvm/vmx/vvmx.h Sat May 28 09:49:25 2011 +0800
+++ b/xen/include/asm-x86/hvm/vmx/vvmx.h Mon May 30 17:15:52 2011 +0800
@@ -37,5 +37,14 @@
#define nvcpu_2_nvmx(nv) ((*(nv)).u.nvmx)
#define vcpu_2_nvmx(v) (nvcpu_2_nvmx(&vcpu_nestedhvm(v)))
+
+int nvmx_vcpu_initialise(struct vcpu *v);
+void nvmx_vcpu_destroy(struct vcpu *v);
+int nvmx_vcpu_reset(struct vcpu *v);
+uint64_t nvmx_vcpu_guestcr3(struct vcpu *v);
+uint64_t nvmx_vcpu_hostcr3(struct vcpu *v);
+uint32_t nvmx_vcpu_asid(struct vcpu *v);
+enum hvm_intblk nvmx_intr_blocked(struct vcpu *v);
+
#endif /* __ASM_X86_HVM_VVMX_H__ */
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