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Re: [Qemu-devel] qemu-2.9 crashes in tcg_handle_interrupt() during winx6
From: |
Alex Bennée |
Subject: |
Re: [Qemu-devel] qemu-2.9 crashes in tcg_handle_interrupt() during winx64 boot |
Date: |
Thu, 30 Mar 2017 17:14:47 +0100 |
User-agent: |
mu4e 0.9.19; emacs 25.2.12 |
Alex Bennée <address@hidden> writes:
> Igor Mammedov <address@hidden> writes:
>
>> (PS: resend due to wrong qemu-devel mail list address in original
>> email)
>
> Le *sigh* another way of x86 generating IRQs ;-)
>
> Could you test this please?
Sorry I missed you'll also need a:
#include "qemu/main-loop.h"
At the top of misc_helper.c
>
> target/i386/misc_helper: wrap BQL around another IRQ generator
>
> Anything that calls into HW emulation must be protected by the BQL.
>
> Signed-off-by: Alex Bennée <address@hidden>
>
> 1 file changed, 2 insertions(+)
> target/i386/misc_helper.c | 2 ++
>
> modified target/i386/misc_helper.c
> @@ -156,7 +156,9 @@ void helper_write_crN(CPUX86State *env, int reg,
> target_ulong t0)
> break;
> case 8:
> if (!(env->hflags2 & HF2_VINTR_MASK)) {
> + qemu_mutex_lock_iothread();
> cpu_set_apic_tpr(x86_env_get_cpu(env)->apic_state, t0);
> + qemu_mutex_unlock_iothread();
> }
> env->v_tpr = t0 & 0x0f;
> break;
--
Alex Bennée