Update VMCS-GUEST.md

merge-requests/1/head
_xeroxz 3 years ago
parent c097668e8f
commit 0db2e8073c

@ -62,26 +62,26 @@ This section specifies the checks on the fields for CS, SS, DS, ES, FS, GS, TR,
* Selector fields.
- TR. The TI flag (bit 2) must be 0.
- LDTR. If LDTR is usable, the TI flag (bit 2) must be 0.
- SS. If the guest will not be virtual-8086 and the “unrestricted guest” VM-execution control is 0, the RPL
(bits 1:0) must equal the RPL of the selector field for CS.
- TR. The TI flag (bit 2) must be 0. :white_check_mark:
- LDTR. If LDTR is usable, the TI flag (bit 2) must be 0. :white_check_mark:
- SS. If the guest will not be virtual-8086 and the “unrestricted guest” VM-execution control is 0, the RPL :white_check_mark:
(bits 1:0) must equal the RPL of the selector field for CS. :white_check_mark:
* Base-address fields.
- TR, FS, GS. The address must be canonical.
- CS. Bits 63:32 of the address must be zero.
- SS, DS, ES. If the register is usable, bits 63:32 of the address must be zero.
- TR, FS, GS. The address must be canonical. :white_check_mark:
- CS. Bits 63:32 of the address must be zero. :white_check_mark:
- SS, DS, ES. If the register is usable, bits 63:32 of the address must be zero. :white_check_mark:
* Access-rights fields for CS, SS, DS, ES, FS, GS.
- CS Bits 3:0 (Type): must be 9, 11, 13, or 15 (accessed code segment).
- SS. If SS is usable, the Type must be 3 or 7 (read/write, accessed data segment).
- DS, ES, FS, GS. The following checks apply if the register is usable
- Bit 0 of the Type must be 1 (accessed).
- If bit 3 of the Type is 1 (code segment), then bit 1 of the Type must be 1 (readable).
- Bit 4 (S). If the register is CS or if the register is usable, S must be 1
- CS Bits 3:0 (Type): must be 9, 11, 13, or 15 (accessed code segment). :white_check_mark:
- SS. If SS is usable, the Type must be 3 or 7 (read/write, accessed data segment). :white_check_mark:
- DS, ES, FS, GS. The following checks apply if the register is usable :white_check_mark:
- Bit 0 of the Type must be 1 (accessed). :white_check_mark:
- If bit 3 of the Type is 1 (code segment), then bit 1 of the Type must be 1 (readable). :white_check_mark:
- Bit 4 (S). If the register is CS or if the register is usable, S must be 1 :white_check_mark:
```
es selector: 0x000000000000002B
@ -198,17 +198,17 @@ ds rights: 0x000000000000C0F3
- Bits 3:0 (Type).
- If the guest will not be IA-32e mode, the Type must be 3 (16-bit busy TSS) or 11 (32-bit busy
TSS).
- If the guest will be IA-32e mode, the Type must be 11 (64-bit busy TSS).
TSS). :white_check_mark:
- If the guest will be IA-32e mode, the Type must be 11 (64-bit busy TSS). :white_check_mark:
- Bit 4 (S). S must be 0.
- Bit 7 (P). P must be 1.
- Bits 11:8 (reserved). These bits must all be 0.
- Bit 4 (S). S must be 0. :white_check_mark:
- Bit 7 (P). P must be 1. :white_check_mark:
- Bits 11:8 (reserved). These bits must all be 0. :white_check_mark:
- Bit 15 (G).
- If any bit in the limit field in the range 11:0 is 0, G must be 0.
- If any bit in the limit field in the range 31:20 is 1, G must be 1.
- Bit 16 (Unusable). The unusable bit must be 0.
- Bits 31:17 (reserved). These bits must all be 0.
- If any bit in the limit field in the range 11:0 is 0, G must be 0. :white_check_mark:
- If any bit in the limit field in the range 31:20 is 1, G must be 1. :white_check_mark:
- Bit 16 (Unusable). The unusable bit must be 0. :white_check_mark:
- Bits 31:17 (reserved). These bits must all be 0. :white_check_mark:
```
tr selector: 0x0000000000000040
@ -231,14 +231,14 @@ tr rights: 0x000000000000008B
* LDTR Access Rights Checks. The following checks on the different sub-fields apply only if LDTR is usable:
- Bits 3:0 (Type). The Type must be 2 (LDT).
- Bit 4 (S). S must be 0.
- Bit 7 (P). P must be 1.
- Bits 11:8 (reserved). These bits must all be 0.
- Bits 3:0 (Type). The Type must be 2 (LDT). :white_check_mark:
- Bit 4 (S). S must be 0. :white_check_mark:
- Bit 7 (P). P must be 1. :white_check_mark:
- Bits 11:8 (reserved). These bits must all be 0. :white_check_mark:
- Bit 15 (G).
- If any bit in the limit field in the range 11:0 is 0, G must be 0.
- If any bit in the limit field in the range 31:20 is 1, G must be 1.
- Bits 31:17 (reserved). These bits must all be 0.
- If any bit in the limit field in the range 11:0 is 0, G must be 0. :white_check_mark:
- If any bit in the limit field in the range 31:20 is 1, G must be 1. :white_check_mark:
- Bits 31:17 (reserved). These bits must all be 0. :white_check_mark:
```
ldt selector: 0x0000000000000000

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