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hv: avoid hardcode cs.limit in set_vcpu_regs()

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For SOS BSP, we reuse native saved cs.limit
For UOS BSP, we set cs.limit in DM
For AP, we use initialized data from realmode_init_regs.

Tracked-On: #1231
Signed-off-by: Yin Fengwei <fengwei.yin@intel.com>
Acked-by: Eddie Dong <Eddie.dong@intel.com>
This commit is contained in:
Yin Fengwei
2018-10-29 17:23:12 +08:00
committed by lijinxia
parent 0cd85749fe
commit e32bc9e36d
2 changed files with 12 additions and 7 deletions
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2
hypervisor/include/arch/x86/guest/guest.h
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@@ -69,6 +69,8 @@
#define REAL_MODE_CODE_SEG_AR (0x009fU)
#define PROTECTED_MODE_DATA_SEG_AR (0xc093U)
#define PROTECTED_MODE_CODE_SEG_AR (0xc09bU)
#define REAL_MODE_SEG_LIMIT (0xffffU)
#define PROTECTED_MODE_SEG_LIMIT (0xffffffffU)
#define DR7_INIT_VALUE (0x400UL)
#define LDTR_AR (0x0082U) /* LDT, type must be 2, refer to SDM Vol3 26.3.1.2 */
#define TR_AR (0x008bU) /* TSS (busy), refer to SDM Vol3 26.3.1.2 */