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[Qemu-devel] [PATCH 06/13] Synchronize VCPU states before reset
From: |
Jan Kiszka |
Subject: |
[Qemu-devel] [PATCH 06/13] Synchronize VCPU states before reset |
Date: |
Tue, 15 Feb 2011 09:23:30 +0100 |
This is required to support keeping VCPU states across a system reset.
If we do not read the current state before the reset,
cpu_synchronize_all_post_reset may write back incorrect state
information.
The first user of this will be MCE MSR synchronization which currently
works around the missing cpu_synchronize_all_states.
Signed-off-by: Jan Kiszka <address@hidden>
---
vl.c | 1 +
1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/vl.c b/vl.c
index b436952..7751843 100644
--- a/vl.c
+++ b/vl.c
@@ -1452,6 +1452,7 @@ static void main_loop(void)
}
if (qemu_reset_requested()) {
pause_all_vcpus();
+ cpu_synchronize_all_states();
qemu_system_reset();
resume_all_vcpus();
}
--
1.7.1
- [Qemu-devel] [PATCH 00/13] [uq/master] Patch queue, part IV (MCE edition), Jan Kiszka, 2011/02/15
- [Qemu-devel] [PATCH 06/13] Synchronize VCPU states before reset,
Jan Kiszka <=
- [Qemu-devel] [PATCH 10/13] kvm: x86: Clean up kvm_setup_mce, Jan Kiszka, 2011/02/15
- [Qemu-devel] [PATCH 01/13] x86: Account for MCE in cpu_has_work, Jan Kiszka, 2011/02/15
- [Qemu-devel] [PATCH 02/13] x86: Perform implicit mcg_status reset, Jan Kiszka, 2011/02/15
- [Qemu-devel] [PATCH 07/13] kvm: x86: Move MCE functions together, Jan Kiszka, 2011/02/15
- [Qemu-devel] [PATCH 11/13] kvm: x86: Fail kvm_arch_init_vcpu if MCE initialization fails, Jan Kiszka, 2011/02/15
- [Qemu-devel] [PATCH 03/13] x86: Small cleanups of MCE helpers, Jan Kiszka, 2011/02/15
- [Qemu-devel] [PATCH 12/13] Add qemu_ram_remap, Jan Kiszka, 2011/02/15
- [Qemu-devel] [PATCH 05/13] x86: Optionally avoid injecting AO MCEs while others are pending, Jan Kiszka, 2011/02/15
- [Qemu-devel] [PATCH 08/13] kvm: x86: Inject pending MCE events on state writeback, Jan Kiszka, 2011/02/15