On Fri, Feb 14, 2020 at 08:59:39AM -0800, Dave Hansen wrote:
> On 2/13/20 11:23 PM, Joerg Roedel wrote:
> > Yes, investigating this is on the list for future optimizations (besides
> > caching CPUID results). My idea is to use alternatives patching for
> > this. But the exception handling is
On 2/13/20 11:23 PM, Joerg Roedel wrote:
> Yes, investigating this is on the list for future optimizations (besides
> caching CPUID results). My idea is to use alternatives patching for
> this. But the exception handling is needed anyway because #VC
> exceptions happen very early already,
On Thu, Feb 13, 2020 at 07:45:00AM -0800, Dave Hansen wrote:
> On 2/11/20 5:52 AM, Joerg Roedel wrote:
> > Implement a handler for #VC exceptions caused by RDMSR/WRMSR
> > instructions.
>
> As a general comment on all of these event handlers: Why do we bother
> having the hypercalls in the
On 2/11/20 5:52 AM, Joerg Roedel wrote:
> Implement a handler for #VC exceptions caused by RDMSR/WRMSR
> instructions.
As a general comment on all of these event handlers: Why do we bother
having the hypercalls in the interrupt handler as opposed to just
calling them directly. What you have is:
From: Tom Lendacky
Implement a handler for #VC exceptions caused by RDMSR/WRMSR
instructions.
Signed-off-by: Tom Lendacky
[ jroe...@suse.de: Adapt to #VC handling infrastructure ]
Co-developed-by: Joerg Roedel
Signed-off-by: Joerg Roedel
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arch/x86/kernel/sev-es.c | 32
