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[Qemu-devel] [PATCH v2 07/17] target-alpha: Set EXC_M_SWC for exceptions
From: |
Richard Henderson |
Subject: |
[Qemu-devel] [PATCH v2 07/17] target-alpha: Set EXC_M_SWC for exceptions from /S insns |
Date: |
Tue, 12 May 2015 10:39:37 -0700 |
Previously forgotten, the kernel needs the software completion bit to
know that it needs to emulate software completion qualified insns.
Reported-by: Al Viro <address@hidden>
Signed-off-by: Richard Henderson <address@hidden>
---
target-alpha/fpu_helper.c | 8 +++-----
1 file changed, 3 insertions(+), 5 deletions(-)
diff --git a/target-alpha/fpu_helper.c b/target-alpha/fpu_helper.c
index 6e84fd3..914c1d5 100644
--- a/target-alpha/fpu_helper.c
+++ b/target-alpha/fpu_helper.c
@@ -55,10 +55,8 @@ static uint32_t soft_to_fpcr_exc(CPUAlphaState *env)
}
static void fp_exc_raise1(CPUAlphaState *env, uintptr_t retaddr,
- uint32_t exc, uint32_t regno)
+ uint32_t exc, uint32_t regno, uint32_t hw_exc)
{
- uint32_t hw_exc = 0;
-
hw_exc |= CONVERT_BIT(exc, FPCR_INV, EXC_M_INV);
hw_exc |= CONVERT_BIT(exc, FPCR_DZE, EXC_M_DZE);
hw_exc |= CONVERT_BIT(exc, FPCR_OVF, EXC_M_FOV);
@@ -79,7 +77,7 @@ void helper_fp_exc_raise(CPUAlphaState *env, uint32_t ignore,
uint32_t regno)
env->fpcr |= exc;
exc &= ~ignore;
if (exc) {
- fp_exc_raise1(env, GETPC(), exc, regno);
+ fp_exc_raise1(env, GETPC(), exc, regno, 0);
}
}
}
@@ -93,7 +91,7 @@ void helper_fp_exc_raise_s(CPUAlphaState *env, uint32_t
ignore, uint32_t regno)
exc &= ~ignore;
if (exc) {
exc &= env->fpcr_exc_enable;
- fp_exc_raise1(env, GETPC(), exc, regno);
+ fp_exc_raise1(env, GETPC(), exc, regno, EXC_M_SWC);
}
}
}
--
2.1.0
- [Qemu-devel] [PATCH v2 00/17] target-alpha fpu improvments, Richard Henderson, 2015/05/12
- [Qemu-devel] [PATCH v2 02/17] target-alpha: Rename floating-point subroutines, Richard Henderson, 2015/05/12
- [Qemu-devel] [PATCH v2 04/17] target-alpha: Set PC correctly for floating-point exceptions, Richard Henderson, 2015/05/12
- [Qemu-devel] [PATCH v2 01/17] target-alpha: Move VAX helpers to a new file, Richard Henderson, 2015/05/12
- [Qemu-devel] [PATCH v2 05/17] target-alpha: Tidy FPCR representation, Richard Henderson, 2015/05/12
- [Qemu-devel] [PATCH v2 06/17] target-alpha: Set fpcr_exc_status even for disabled exceptions, Richard Henderson, 2015/05/12
- [Qemu-devel] [PATCH v2 03/17] target-alpha: Forget installed round mode after MT_FPCR, Richard Henderson, 2015/05/12
- [Qemu-devel] [PATCH v2 07/17] target-alpha: Set EXC_M_SWC for exceptions from /S insns,
Richard Henderson <=
- [Qemu-devel] [PATCH v2 09/17] target-alpha: Fix cvttq vs large integers, Richard Henderson, 2015/05/12
- [Qemu-devel] [PATCH v2 08/17] target-alpha: Raise IOV from CVTTQ, Richard Henderson, 2015/05/12
- [Qemu-devel] [PATCH v2 11/17] target-alpha: Fix integer overflow checking insns, Richard Henderson, 2015/05/12
- [Qemu-devel] [PATCH v2 12/17] target-alpha: Implement WH64EN, Richard Henderson, 2015/05/12
- [Qemu-devel] [PATCH v2 10/17] target-alpha: Fix cvttq vs inf, Richard Henderson, 2015/05/12
- [Qemu-devel] [PATCH v2 13/17] target-alpha: Disallow literal operand to 1C.30 to 1C.37, Richard Henderson, 2015/05/12
- [Qemu-devel] [PATCH v2 14/17] target-alpha: Raise EXC_M_INV properly for fp inputs, Richard Henderson, 2015/05/12
- [Qemu-devel] [PATCH v2 17/17] target-alpha: Rewrite helper_zapnot, Richard Henderson, 2015/05/12
- [Qemu-devel] [PATCH v2 15/17] target-alpha: Suppress underflow from CVTTQ if DNZ, Richard Henderson, 2015/05/12
- [Qemu-devel] [PATCH v2 16/17] target-alpha: Raise IOV from CVTQL, Richard Henderson, 2015/05/12