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[PULL 09/30] target/ppc: fix exception error value in slbfee
From: |
Daniel Henrique Barboza |
Subject: |
[PULL 09/30] target/ppc: fix exception error value in slbfee |
Date: |
Mon, 18 Jul 2022 14:21:47 -0300 |
From: Matheus Ferst <matheus.ferst@eldorado.org.br>
Testing on a POWER9 DD2.3, we observed that the Linux kernel delivers a
signal with si_code ILL_PRVOPC (5) when a userspace application tries to
use slbfee. To obtain this behavior on linux-user, we should use
POWERPC_EXCP_PRIV with POWERPC_EXCP_PRIV_OPC.
No functional change is intended for softmmu targets as
gen_hvpriv_exception uses the same 'exception' argument
(POWERPC_EXCP_HV_EMU) for raise_exception_*, and the powerpc_excp_*
methods do not use lower bits of the exception error code when handling
POWERPC_EXCP_{INVAL,PRIV}.
Reported-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Matheus Ferst <matheus.ferst@eldorado.org.br>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Message-Id: <20220627141104.669152-3-matheus.ferst@eldorado.org.br>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
---
target/ppc/translate.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/target/ppc/translate.c b/target/ppc/translate.c
index 55f34eb490..d7e5670c20 100644
--- a/target/ppc/translate.c
+++ b/target/ppc/translate.c
@@ -5386,12 +5386,12 @@ static void gen_slbmfev(DisasContext *ctx)
static void gen_slbfee_(DisasContext *ctx)
{
#if defined(CONFIG_USER_ONLY)
- gen_inval_exception(ctx, POWERPC_EXCP_PRIV_REG);
+ gen_hvpriv_exception(ctx, POWERPC_EXCP_PRIV_OPC);
#else
TCGLabel *l1, *l2;
if (unlikely(ctx->pr)) {
- gen_inval_exception(ctx, POWERPC_EXCP_PRIV_REG);
+ gen_hvpriv_exception(ctx, POWERPC_EXCP_PRIV_OPC);
return;
}
gen_helper_find_slb_vsid(cpu_gpr[rS(ctx->opcode)], cpu_env,
--
2.36.1
- [PULL 00/30] ppc queue, Daniel Henrique Barboza, 2022/07/18
- [PULL 01/30] ppc64: Allocate IRQ lines with qdev_init_gpio_in(), Daniel Henrique Barboza, 2022/07/18
- [PULL 02/30] ppc/40x: Allocate IRQ lines with qdev_init_gpio_in(), Daniel Henrique Barboza, 2022/07/18
- [PULL 03/30] ppc/6xx: Allocate IRQ lines with qdev_init_gpio_in(), Daniel Henrique Barboza, 2022/07/18
- [PULL 04/30] ppc/e500: Allocate IRQ lines with qdev_init_gpio_in(), Daniel Henrique Barboza, 2022/07/18
- [PULL 05/30] ppc: Remove unused irq_inputs, Daniel Henrique Barboza, 2022/07/18
- [PULL 06/30] hw/ppc: pass random seed to fdt, Daniel Henrique Barboza, 2022/07/18
- [PULL 07/30] target/ppc/kvm: Skip current and parent directories in kvmppc_find_cpu_dt, Daniel Henrique Barboza, 2022/07/18
- [PULL 08/30] target/ppc: Fix gen_priv_exception error value in mfspr/mtspr, Daniel Henrique Barboza, 2022/07/18
- [PULL 11/30] target/ppc: fix exception error code in helper_{load, store}_dcr, Daniel Henrique Barboza, 2022/07/18
- [PULL 09/30] target/ppc: fix exception error value in slbfee,
Daniel Henrique Barboza <=
- [PULL 13/30] target/ppc: fix exception error code in spr_write_excp_vector, Daniel Henrique Barboza, 2022/07/18
- [PULL 12/30] target/ppc: fix PMU Group A register read/write exceptions, Daniel Henrique Barboza, 2022/07/18
- [PULL 10/30] target/ppc: remove mfdcrux and mtdcrux, Daniel Henrique Barboza, 2022/07/18
- [PULL 16/30] target/ppc: receive DisasContext explicitly in GEN_PRIV, Daniel Henrique Barboza, 2022/07/18
- [PULL 14/30] target/ppc: Move tlbie[l] to decode tree, Daniel Henrique Barboza, 2022/07/18
- [PULL 15/30] target/ppc: Implement ISA 3.00 tlbie[l], Daniel Henrique Barboza, 2022/07/18
- [PULL 19/30] target/ppc: Move slbieg to decodetree, Daniel Henrique Barboza, 2022/07/18
- [PULL 20/30] target/ppc: Move slbia to decodetree, Daniel Henrique Barboza, 2022/07/18
- [PULL 18/30] target/ppc: Move slbie to decodetree, Daniel Henrique Barboza, 2022/07/18
- [PULL 22/30] target/ppc: Move slbmfev to decodetree, Daniel Henrique Barboza, 2022/07/18