Changeset 10647 in vbox for trunk/src/VBox/VMM/VMMAll

Timestamp:

Jul 15, 2008 12:07:24 PM (17 years ago)

Author:

vboxsync

svn:sync-xref-src-repo-rev:

33357

Message:

Manual saving of XMM registers.
Use new FPU/MMX/XMM state saving for VT-x and AMD-V.

File:

• trunk/src/VBox/VMM/VMMAll/CPUMAllA.asm (modified) (2 diffs)

trunk/src/VBox/VMM/VMMAll/CPUMAllA.asm

@@ -267 +267 @@
 
 ;;
-; Restores the host's FPU/XMM state
+; Restores the guest's FPU/XMM state
 ;
 ; @param    pCtx  x86:[esp+4] GCC:rdi MSC:rcx     CPUMCTX pointer
@@ -285 +285 @@
     ret
 ENDPROC CPUMSaveFPUAsm
+
+;;
+; Saves the guest's XMM state
+;
+; @param    pCtx  x86:[esp+4] GCC:rdi MSC:rcx     CPUMCTX pointer
+;
+BEGINPROC   CPUMLoadXMMAsm
+%ifdef RT_ARCH_AMD64
+ %ifdef RT_OS_WINDOWS
+    mov     xDX, rcx
+ %else
+    mov     xDX, rdi
+ %endif
+%else
+    mov     xDX, dword [esp + 4]
+%endif
+    movdqa  xmm0, [xDX + CPUMCTX.fpu + X86FXSTATE.aXMM + 16*0]
+    movdqa  xmm1, [xDX + CPUMCTX.fpu + X86FXSTATE.aXMM + 16*1]
+    movdqa  xmm2, [xDX + CPUMCTX.fpu + X86FXSTATE.aXMM + 16*2]
+    movdqa  xmm3, [xDX + CPUMCTX.fpu + X86FXSTATE.aXMM + 16*3]
+    movdqa  xmm4, [xDX + CPUMCTX.fpu + X86FXSTATE.aXMM + 16*4]
+    movdqa  xmm5, [xDX + CPUMCTX.fpu + X86FXSTATE.aXMM + 16*5]
+    movdqa  xmm6, [xDX + CPUMCTX.fpu + X86FXSTATE.aXMM + 16*6]
+    movdqa  xmm7, [xDX + CPUMCTX.fpu + X86FXSTATE.aXMM + 16*7]
+    
+%ifdef RT_ARCH_AMD64
+    test qword [xDX + CPUMCTX.msrEFER], MSR_K6_EFER_LMA
+    jz CPUMLoadXMMAsm_done
+    
+    movdqa  xmm8, [xDX + CPUMCTX.fpu + X86FXSTATE.aXMM + 16*8]
+    movdqa  xmm9, [xDX + CPUMCTX.fpu + X86FXSTATE.aXMM + 16*9]
+    movdqa  xmm10, [xDX + CPUMCTX.fpu + X86FXSTATE.aXMM + 16*10]
+    movdqa  xmm11, [xDX + CPUMCTX.fpu + X86FXSTATE.aXMM + 16*11]
+    movdqa  xmm12, [xDX + CPUMCTX.fpu + X86FXSTATE.aXMM + 16*12]
+    movdqa  xmm13, [xDX + CPUMCTX.fpu + X86FXSTATE.aXMM + 16*13]
+    movdqa  xmm14, [xDX + CPUMCTX.fpu + X86FXSTATE.aXMM + 16*14]
+    movdqa  xmm15, [xDX + CPUMCTX.fpu + X86FXSTATE.aXMM + 16*15]
+CPUMLoadXMMAsm_done:
+%endif
+
+    ret
+ENDPROC     CPUMLoadXMMAsm
+
+
+;;
+; Restores the guest's XMM state
+;
+; @param    pCtx  x86:[esp+4] GCC:rdi MSC:rcx     CPUMCTX pointer
+;
+BEGINPROC   CPUMSaveXMMAsm
+%ifdef RT_ARCH_AMD64
+ %ifdef RT_OS_WINDOWS
+    mov     xDX, rcx
+ %else
+    mov     xDX, rdi
+ %endif
+%else
+    mov     xDX, dword [esp + 4]
+%endif
+    movdqa  [xDX + CPUMCTX.fpu + X86FXSTATE.aXMM + 16*0], xmm0
+    movdqa  [xDX + CPUMCTX.fpu + X86FXSTATE.aXMM + 16*1], xmm1
+    movdqa  [xDX + CPUMCTX.fpu + X86FXSTATE.aXMM + 16*2], xmm2
+    movdqa  [xDX + CPUMCTX.fpu + X86FXSTATE.aXMM + 16*3], xmm3
+    movdqa  [xDX + CPUMCTX.fpu + X86FXSTATE.aXMM + 16*4], xmm4
+    movdqa  [xDX + CPUMCTX.fpu + X86FXSTATE.aXMM + 16*5], xmm5
+    movdqa  [xDX + CPUMCTX.fpu + X86FXSTATE.aXMM + 16*6], xmm6
+    movdqa  [xDX + CPUMCTX.fpu + X86FXSTATE.aXMM + 16*7], xmm7
+    
+%ifdef RT_ARCH_AMD64
+    test qword [xDX + CPUMCTX.msrEFER], MSR_K6_EFER_LMA
+    jz CPUMSaveXMMAsm_done
+
+    movdqa  [xDX + CPUMCTX.fpu + X86FXSTATE.aXMM + 16*8], xmm8
+    movdqa  [xDX + CPUMCTX.fpu + X86FXSTATE.aXMM + 16*9], xmm9
+    movdqa  [xDX + CPUMCTX.fpu + X86FXSTATE.aXMM + 16*10], xmm10
+    movdqa  [xDX + CPUMCTX.fpu + X86FXSTATE.aXMM + 16*11], xmm11
+    movdqa  [xDX + CPUMCTX.fpu + X86FXSTATE.aXMM + 16*12], xmm12
+    movdqa  [xDX + CPUMCTX.fpu + X86FXSTATE.aXMM + 16*13], xmm13
+    movdqa  [xDX + CPUMCTX.fpu + X86FXSTATE.aXMM + 16*14], xmm14
+    movdqa  [xDX + CPUMCTX.fpu + X86FXSTATE.aXMM + 16*15], xmm15
+    
+CPUMSaveXMMAsm_done:
+%endif
+    ret
+ENDPROC     CPUMSaveXMMAsm
+