public inbox for kvm@vger.kernel.org
 help / color / mirror / Atom feed
From: Gleb Natapov <gleb@redhat.com>
To: avi@redhat.com
Cc: kvm@vger.kernel.org
Subject: [PATCH] revert part of 3db8b916e merge
Date: Wed, 3 Jun 2009 15:07:56 +0300	[thread overview]
Message-ID: <20090603120756.GC11384@redhat.com> (raw)

kvm_*_mpstate() cannot be called from kvm_arch_*_registers()
since kvm_arch_*_registers() sometimes called from io thread, but
kvm_*_mpstate() can be called only by cpu thread.

Signed-off-by: Gleb Natapov <gleb@redhat.com>
diff --git a/qemu-kvm.c b/qemu-kvm.c
index 68d3b92..7ed1e06 100644
--- a/qemu-kvm.c
+++ b/qemu-kvm.c
@@ -1431,26 +1431,3 @@ void qemu_kvm_cpu_stop(CPUState *env)
     if (kvm_enabled())
         env->kvm_cpu_state.stopped = 1;
 }
-
-void kvm_arch_get_registers(CPUState *env)
-{
-    kvm_save_registers(env);
-    kvm_save_mpstate(env);
-}
-
-void kvm_arch_put_registers(CPUState *env)
-{
-    kvm_load_registers(env);
-    kvm_load_mpstate(env);
-}
-
-
-void cpu_synchronize_state(CPUState *env, int modified)
-{
-    if (kvm_enabled()) {
-        if (modified)
-            kvm_arch_put_registers(env);
-        else
-            kvm_arch_get_registers(env);
-    }
-}
diff --git a/qemu-kvm.h b/qemu-kvm.h
index 725589b..5d47e88 100644
--- a/qemu-kvm.h
+++ b/qemu-kvm.h
@@ -216,10 +216,25 @@ int kvm_log_stop(target_phys_addr_t phys_addr, target_phys_addr_t len);
 
 static inline int kvm_sync_vcpus(void) { return 0; }
 
-void kvm_arch_get_registers(CPUState *env);
-void kvm_arch_put_registers(CPUState *env);
+static inline void kvm_arch_get_registers(CPUState *env)
+{
+    kvm_save_registers(env);
+}
 
-void cpu_synchronize_state(CPUState *env, int modified);
+static inline void kvm_arch_put_registers(CPUState *env)
+{
+    kvm_load_registers(env);
+}
+
+static inline void cpu_synchronize_state(CPUState *env, int modified)
+{
+    if (kvm_enabled()) {
+        if (modified)
+            kvm_arch_put_registers(env);
+        else
+            kvm_arch_get_registers(env);
+    }
+}
 
 uint32_t kvm_arch_get_supported_cpuid(CPUState *env, uint32_t function,
                                       int reg);
diff --git a/target-i386/machine.c b/target-i386/machine.c
index f280d3d..07df1e1 100644
--- a/target-i386/machine.c
+++ b/target-i386/machine.c
@@ -32,7 +32,10 @@ void cpu_save(QEMUFile *f, void *opaque)
     int32_t pending_irq;
     int i, bit;
 
-    cpu_synchronize_state(env, 0);
+    if (kvm_enabled()) {
+        kvm_save_registers(env);
+        kvm_save_mpstate(env);
+    }
 
     for(i = 0; i < CPU_NB_REGS; i++)
         qemu_put_betls(f, &env->regs[i]);
--
			Gleb.

             reply	other threads:[~2009-06-03 12:07 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-06-03 12:07 Gleb Natapov [this message]
2009-06-03 12:16 ` [PATCH] revert part of 3db8b916e merge Avi Kivity
2009-06-03 12:20   ` Gleb Natapov
2009-06-04 13:00 ` Avi Kivity

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20090603120756.GC11384@redhat.com \
    --to=gleb@redhat.com \
    --cc=avi@redhat.com \
    --cc=kvm@vger.kernel.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox