Displaying 3 results from an estimated 3 matches for "xstate_sse".
2013 Nov 19
6
[PATCH 2/5] X86 architecture instruction set extension definiation
...state */
void xstate_init(bool_t bsp)
{
- u32 eax, ebx, ecx, edx, min_size;
+ u32 eax, ebx, ecx, edx;
u64 feature_mask;
if ( boot_cpu_data.cpuid_level < XSTATE_CPUID )
@@ -269,12 +269,6 @@ void xstate_init(bool_t bsp)
BUG_ON((eax & XSTATE_YMM) && !(eax & XSTATE_SSE));
feature_mask = (((u64)edx << 32) | eax) & XCNTXT_MASK;
- /* FP/SSE, XSAVE.HEADER, YMM */
- min_size = XSTATE_AREA_MIN_SIZE;
- if ( eax & XSTATE_YMM )
- min_size += XSTATE_YMM_SIZE;
- BUG_ON(ecx < min_size);
-
/*
* Set CR4_OSXSAVE and run &qu...
2013 Nov 25
0
[PATCH 2/4 V2] X86: enable support for new ISA extensions
...state */
void xstate_init(bool_t bsp)
{
- u32 eax, ebx, ecx, edx, min_size;
+ u32 eax, ebx, ecx, edx;
u64 feature_mask;
if ( boot_cpu_data.cpuid_level < XSTATE_CPUID )
@@ -269,12 +269,6 @@ void xstate_init(bool_t bsp)
BUG_ON((eax & XSTATE_YMM) && !(eax & XSTATE_SSE));
feature_mask = (((u64)edx << 32) | eax) & XCNTXT_MASK;
- /* FP/SSE, XSAVE.HEADER, YMM */
- min_size = XSTATE_AREA_MIN_SIZE;
- if ( eax & XSTATE_YMM )
- min_size += XSTATE_YMM_SIZE;
- BUG_ON(ecx < min_size);
-
/*
* Set CR4_OSXSAVE and run &qu...
2013 Jun 04
12
[PATCH 0/4] XSA-52..54 follow-up
The first patch really isn''t as much of a follow-up than what triggered
the security issues to be noticed in the first place.
1: x86: preserve FPU selectors for 32-bit guest code
2: x86: fix XCR0 handling
3: x86/xsave: adjust state management
4: x86/fxsave: bring in line with recent xsave adjustments
The first two I would see as candidates for 4.3 (as well as
subsequent backporting,