Junming Liu 23d9c13c41 hv:cpuid:refine cpuid_subleaf interface ...

There's a corner case:
When want to get CPUID.01H:EDX value,
may have the following code snippet:

uint32_t unused,edx;
cpuid_subleaf(0x1U, 0x0U, &unused, &unused, &unused, &edx);

while in cpuid_subleaf:
*eax = leaf;
*ecx = subleaf;
eax and ecx point to the same location,
When deep into asm_cpuid, it's input value will be 0x0U and 0x0U.
but the expected input value is 0x1U and 0x0U.

This case will return CPUID.00H:EDX, which is the wrong answer.

Tracked-On: #4526

Signed-off-by: Junming Liu <junming.liu@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>

2020-08-17 10:14:00 +08:00

..

arch/x86

hv:cpuid:refine cpuid_subleaf interface

2020-08-17 10:14:00 +08:00

common

HV: add VM uuid and type for pre-launched RTVM

2020-07-23 21:58:32 +08:00

debug

HV: correct ept page array usage

2020-03-12 14:56:34 +08:00

dm

hv:refine vm & vcpu lock

2020-08-05 13:39:28 +08:00

hw

HV: vdev passthough hidding SRIOV

2020-07-16 17:27:18 +08:00

lib

HV: enable multiboot module string as kernel bootargs

2020-06-08 13:30:04 +08:00

public

hv: mmio_dev: add hypercall to support mmio device pass through

2020-07-23 20:13:20 +08:00