* [PATCH][uq/master] kvm: x86: Use symbols for all xsave field
@ 2011-10-27 17:26 ` Jan Kiszka
0 siblings, 0 replies; 2+ messages in thread
From: Jan Kiszka @ 2011-10-27 17:26 UTC (permalink / raw)
To: Avi Kivity, Marcelo Tosatti; +Cc: kvm, qemu-devel
Field 0 (FCW+FSW) and 1 (FTW+FOP) were hard-coded so far.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
---
target-i386/kvm.c | 14 ++++++++------
1 files changed, 8 insertions(+), 6 deletions(-)
diff --git a/target-i386/kvm.c b/target-i386/kvm.c
index 23437ee..b838091 100644
--- a/target-i386/kvm.c
+++ b/target-i386/kvm.c
@@ -763,6 +763,8 @@ static int kvm_put_fpu(CPUState *env)
return kvm_vcpu_ioctl(env, KVM_SET_FPU, &fpu);
}
+#define XSAVE_FCW_FSW 0
+#define XSAVE_FTW_FOP 1
#define XSAVE_CWD_RIP 2
#define XSAVE_CWD_RDP 4
#define XSAVE_MXCSR 6
@@ -789,8 +791,8 @@ static int kvm_put_xsave(CPUState *env)
for (i = 0; i < 8; ++i) {
twd |= (!env->fptags[i]) << i;
}
- xsave->region[0] = (uint32_t)(swd << 16) + cwd;
- xsave->region[1] = (uint32_t)(env->fpop << 16) + twd;
+ xsave->region[XSAVE_FCW_FSW] = (uint32_t)(swd << 16) + cwd;
+ xsave->region[XSAVE_FTW_FOP] = (uint32_t)(env->fpop << 16) + twd;
memcpy(&xsave->region[XSAVE_CWD_RIP], &env->fpip, sizeof(env->fpip));
memcpy(&xsave->region[XSAVE_CWD_RDP], &env->fpdp, sizeof(env->fpdp));
memcpy(&xsave->region[XSAVE_ST_SPACE], env->fpregs,
@@ -991,10 +993,10 @@ static int kvm_get_xsave(CPUState *env)
return ret;
}
- cwd = (uint16_t)xsave->region[0];
- swd = (uint16_t)(xsave->region[0] >> 16);
- twd = (uint16_t)xsave->region[1];
- env->fpop = (uint16_t)(xsave->region[1] >> 16);
+ cwd = (uint16_t)xsave->region[XSAVE_FCW_FSW];
+ swd = (uint16_t)(xsave->region[XSAVE_FCW_FSW] >> 16);
+ twd = (uint16_t)xsave->region[XSAVE_FTW_FOP];
+ env->fpop = (uint16_t)(xsave->region[XSAVE_FTW_FOP] >> 16);
env->fpstt = (swd >> 11) & 7;
env->fpus = swd;
env->fpuc = cwd;
--
1.7.3.4
^ permalink raw reply related [flat|nested] 2+ messages in thread
* [Qemu-devel] [PATCH][uq/master] kvm: x86: Use symbols for all xsave field
@ 2011-10-27 17:26 ` Jan Kiszka
0 siblings, 0 replies; 2+ messages in thread
From: Jan Kiszka @ 2011-10-27 17:26 UTC (permalink / raw)
To: Avi Kivity, Marcelo Tosatti; +Cc: qemu-devel, kvm
Field 0 (FCW+FSW) and 1 (FTW+FOP) were hard-coded so far.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
---
target-i386/kvm.c | 14 ++++++++------
1 files changed, 8 insertions(+), 6 deletions(-)
diff --git a/target-i386/kvm.c b/target-i386/kvm.c
index 23437ee..b838091 100644
--- a/target-i386/kvm.c
+++ b/target-i386/kvm.c
@@ -763,6 +763,8 @@ static int kvm_put_fpu(CPUState *env)
return kvm_vcpu_ioctl(env, KVM_SET_FPU, &fpu);
}
+#define XSAVE_FCW_FSW 0
+#define XSAVE_FTW_FOP 1
#define XSAVE_CWD_RIP 2
#define XSAVE_CWD_RDP 4
#define XSAVE_MXCSR 6
@@ -789,8 +791,8 @@ static int kvm_put_xsave(CPUState *env)
for (i = 0; i < 8; ++i) {
twd |= (!env->fptags[i]) << i;
}
- xsave->region[0] = (uint32_t)(swd << 16) + cwd;
- xsave->region[1] = (uint32_t)(env->fpop << 16) + twd;
+ xsave->region[XSAVE_FCW_FSW] = (uint32_t)(swd << 16) + cwd;
+ xsave->region[XSAVE_FTW_FOP] = (uint32_t)(env->fpop << 16) + twd;
memcpy(&xsave->region[XSAVE_CWD_RIP], &env->fpip, sizeof(env->fpip));
memcpy(&xsave->region[XSAVE_CWD_RDP], &env->fpdp, sizeof(env->fpdp));
memcpy(&xsave->region[XSAVE_ST_SPACE], env->fpregs,
@@ -991,10 +993,10 @@ static int kvm_get_xsave(CPUState *env)
return ret;
}
- cwd = (uint16_t)xsave->region[0];
- swd = (uint16_t)(xsave->region[0] >> 16);
- twd = (uint16_t)xsave->region[1];
- env->fpop = (uint16_t)(xsave->region[1] >> 16);
+ cwd = (uint16_t)xsave->region[XSAVE_FCW_FSW];
+ swd = (uint16_t)(xsave->region[XSAVE_FCW_FSW] >> 16);
+ twd = (uint16_t)xsave->region[XSAVE_FTW_FOP];
+ env->fpop = (uint16_t)(xsave->region[XSAVE_FTW_FOP] >> 16);
env->fpstt = (swd >> 11) & 7;
env->fpus = swd;
env->fpuc = cwd;
--
1.7.3.4
^ permalink raw reply related [flat|nested] 2+ messages in thread
end of thread, other threads:[~2011-10-27 17:26 UTC | newest]
Thread overview: 2+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2011-10-27 17:26 [PATCH][uq/master] kvm: x86: Use symbols for all xsave field Jan Kiszka
2011-10-27 17:26 ` [Qemu-devel] " Jan Kiszka
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.