[Xen-devel] Re: [PATCH 4/6] MCE: Fix the vMCE address translation for HVM guest.

[Christoph Egger <Christoph.Egger@xxxxxxx>]

On Thursday 28 January 2010 06:55:58 Jiang, Yunhong wrote:
> Fix the vMCE address translation for HVM guest.
>
> Fix address translation when we inject a virtual MCE to HVM guest.

IMO, the whole address translation should be x86 generic with hooks
to handle AMD/Intel specific registers.

Christoph

>
> Signed-off-by: Jiang, Yunhong <yunhong.jiang@xxxxxxxxx>
>
> diff -r ac2951705a86 xen/arch/x86/cpu/mcheck/mce_intel.c
> --- a/xen/arch/x86/cpu/mcheck/mce_intel.c     Tue Jan 26 20:04:51 2010 +0800
> +++ b/xen/arch/x86/cpu/mcheck/mce_intel.c     Tue Jan 26 22:49:11 2010 +0800
> @@ -371,8 +371,8 @@ static void intel_UCR_handler(struct mci
>
>                            gfn =
>                                mfn_to_gmfn(d, ((bank->mc_addr) >>
> PAGE_SHIFT)); -                          bank->mc_addr =
> -                              gfn << PAGE_SHIFT | (bank->mc_addr &
> PAGE_MASK); +                          bank->mc_addr =  gfn << PAGE_SHIFT |
> +                                        (bank->mc_addr & (PAGE_SIZE -1 ));
>                            if (fill_vmsr_data(bank, global->mc_gstatus) ==
> -1) {
>                                mce_printk(MCE_QUIET, "Fill vMCE# data for
> DOM%d "



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