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[Qemu-devel] [PATCH v5 50/76] target/mips: Adjust set_hflags_for_handler
From: |
Aleksandar Markovic |
Subject: |
[Qemu-devel] [PATCH v5 50/76] target/mips: Adjust set_hflags_for_handler() for nanoMIPS |
Date: |
Mon, 30 Jul 2018 18:12:23 +0200 |
From: James Hogan <address@hidden>
We shouldn't clear M16 mode when entering an interrupt on nanoMIPS,
otherwise we'll start interpreting the code as normal MIPS code.
Signed-off-by: James Hogan <address@hidden>
Signed-off-by: Yongbok Kim <address@hidden>
Signed-off-by: Aleksandar Markovic <address@hidden>
Signed-off-by: Stefan Markovic <address@hidden>
---
target/mips/helper.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/target/mips/helper.c b/target/mips/helper.c
index 371fecf..a734e86 100644
--- a/target/mips/helper.c
+++ b/target/mips/helper.c
@@ -671,6 +671,9 @@ target_ulong exception_resume_pc (CPUMIPSState *env)
#if !defined(CONFIG_USER_ONLY)
static void set_hflags_for_handler (CPUMIPSState *env)
{
+ if (env->insn_flags & ISA_NANOMIPS32) {
+ return;
+ }
/* Exception handlers are entered in 32-bit mode. */
env->hflags &= ~(MIPS_HFLAG_M16);
/* ...except that microMIPS lets you choose. */
--
2.7.4
- Re: [Qemu-devel] [PATCH v5 44/76] target/mips: Add handling of branch delay slots for nanoMIPS, (continued)
- [Qemu-devel] [PATCH v5 45/76] target/mips: Implement emulation of nanoMIPS LLWP/SCWP pair, Aleksandar Markovic, 2018/07/30
- [Qemu-devel] [PATCH v5 46/76] target/mips: Add updating BadInstr, BadInstrP, BadInstrX for nanoMIPS, Aleksandar Markovic, 2018/07/30
- [Qemu-devel] [PATCH v5 47/76] target/mips: Implement CP0 Config0.WR bit functionality, Aleksandar Markovic, 2018/07/30
- [Qemu-devel] [PATCH v5 48/76] target/mips: Adjust behavior of Config3's ISAOnExc bit for nanoMIPS, Aleksandar Markovic, 2018/07/30
- [Qemu-devel] [PATCH v5 49/76] target/mips: Adjust exception_resume_pc() for nanoMIPS, Aleksandar Markovic, 2018/07/30
- [Qemu-devel] [PATCH v5 50/76] target/mips: Adjust set_hflags_for_handler() for nanoMIPS,
Aleksandar Markovic <=
- [Qemu-devel] [PATCH v5 51/76] target/mips: Adjust set_pc() for nanoMIPS, Aleksandar Markovic, 2018/07/30
- [Qemu-devel] [PATCH v5 52/76] target/mips: Fix ERET/ERETNC behavior related to ADEL exception, Aleksandar Markovic, 2018/07/30
- [Qemu-devel] [PATCH v5 53/76] elf: Add nanoMIPS specific variations in ELF header fields, Aleksandar Markovic, 2018/07/30
- [Qemu-devel] [PATCH v5 54/76] elf: Relax MIPS' elf_check_arch() to accept EM_NANOMIPS too, Aleksandar Markovic, 2018/07/30
- [Qemu-devel] [PATCH v5 55/76] elf: Don't check FCR31_NAN2008 bit for nanoMIPS, Aleksandar Markovic, 2018/07/30
- [Qemu-devel] [PATCH v5 56/76] mips_malta: Add basic nanoMIPS boot code for MIPS' Malta, Aleksandar Markovic, 2018/07/30
- [Qemu-devel] [PATCH v5 57/76] mips_malta: Setup GT64120 BARs in nanoMIPS bootloader, Aleksandar Markovic, 2018/07/30