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[NTOS:KE/x64] Clean up EnterTrap/ExitTrap

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- Always save and restore all non-volatile registers, including xmm
- Remove the obsolete flags
This commit is contained in:
Timo Kreuzer 2024-03-26 00:00:52 +02:00
parent 05456808e8
commit 8d459f2820
2 changed files with 35 additions and 47 deletions
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6
hal/halx86/apic/apictrap.S
View file

@ -15,9 +15,9 @@
#include <trapamd64.inc>
.code
TRAP_ENTRY HalpClockInterrupt, (TF_VOLATILES OR TF_SEND_EOI)
TRAP_ENTRY HalpClockIpi, (TF_VOLATILES OR TF_SEND_EOI)
TRAP_ENTRY HalpProfileInterrupt, (TF_VOLATILES OR TF_SEND_EOI)
TRAP_ENTRY HalpClockInterrupt, TF_SEND_EOI
TRAP_ENTRY HalpClockIpi, TF_SEND_EOI
TRAP_ENTRY HalpProfileInterrupt, TF_SEND_EOI
PUBLIC ApicSpuriousService
ApicSpuriousService:

20
sdk/include/asm/trapamd64.inc
View file

@ -52,13 +52,10 @@ ENDM
APIC_EOI = HEX(0FFFFFFFFFFFE00B0)
TF_VOLATILES = HEX(01)
TF_NONVOLATILES = HEX(02)
TF_XMM = HEX(04)
TF_SEGMENTS = HEX(08)
TF_DEBUG = HEX(10)
TF_IRQL = HEX(20)
TF_SAVE_ALL = (TF_VOLATILES OR TF_NONVOLATILES OR TF_XMM OR TF_SEGMENTS)
TF_SAVE_ALL = (TF_SEGMENTS)
TF_HAS_ERROR_CODE = HEX(40)
TF_SEND_EOI = HEX(80)
//TF_SYSTEMSERVICE = (TRAPFLAG_VOLATILES or TRAPFLAG_DEBUG)
@ -98,11 +95,9 @@ MACRO(EnterTrap, Flags)
sub rsp, (KTRAP_FRAME_LENGTH - SIZE_INITIAL_FRAME)
.allocstack (KTRAP_FRAME_LENGTH - SIZE_INITIAL_FRAME)
/* Save rbp and rax */
/* Save rbp */
mov [rsp + KTRAP_FRAME_Rbp], rbp
.savereg rbp, KTRAP_FRAME_Rbp
mov [rsp + KTRAP_FRAME_Rax], rax
.savereg rax, KTRAP_FRAME_Rax
/* Point rbp to the KTRAP_FRAME */
lea rbp, [rsp]
@ -110,25 +105,22 @@ MACRO(EnterTrap, Flags)
.endprolog
if (Flags AND TF_VOLATILES)
/* Save volatile registers */
mov [rbp + KTRAP_FRAME_Rax], rax
mov [rbp + KTRAP_FRAME_Rcx], rcx
mov [rbp + KTRAP_FRAME_Rdx], rdx
mov [rbp + KTRAP_FRAME_R8], r8
mov [rbp + KTRAP_FRAME_R9], r9
mov [rbp + KTRAP_FRAME_R10], r10
mov [rbp + KTRAP_FRAME_R11], r11
endif
if (Flags AND TF_XMM)
/* Save xmm registers */
/* Save volatile xmm registers */
movdqa [rbp + KTRAP_FRAME_Xmm0], xmm0
movdqa [rbp + KTRAP_FRAME_Xmm1], xmm1
movdqa [rbp + KTRAP_FRAME_Xmm2], xmm2
movdqa [rbp + KTRAP_FRAME_Xmm3], xmm3
movdqa [rbp + KTRAP_FRAME_Xmm4], xmm4
movdqa [rbp + KTRAP_FRAME_Xmm5], xmm5
endif
if (Flags AND TF_SEGMENTS)
/* Save segment selectors */
@ -233,7 +225,6 @@ MACRO(ExitTrap, Flags)
kernel_mode_return:
if (Flags AND TF_VOLATILES)
/* Restore volatile registers */
mov rax, [rbp + KTRAP_FRAME_Rax]
mov rcx, [rbp + KTRAP_FRAME_Rcx]
@ -242,9 +233,7 @@ kernel_mode_return:
mov r9, [rbp + KTRAP_FRAME_R9]
mov r10, [rbp + KTRAP_FRAME_R10]
mov r11, [rbp + KTRAP_FRAME_R11]
endif
if (Flags AND TF_XMM)
/* Restore xmm registers */
movdqa xmm0, [rbp + KTRAP_FRAME_Xmm0]
movdqa xmm1, [rbp + KTRAP_FRAME_Xmm1]
@ -252,7 +241,6 @@ kernel_mode_return:
movdqa xmm3, [rbp + KTRAP_FRAME_Xmm3]
movdqa xmm4, [rbp + KTRAP_FRAME_Xmm4]
movdqa xmm5, [rbp + KTRAP_FRAME_Xmm5]
endif
/* Restore MCXSR */
ldmxcsr [rbp + KTRAP_FRAME_MxCsr]