summaryrefslogtreecommitdiffstats
path: root/qemu/target-mips/helper.c
diff options
context:
space:
mode:
authorJosé Pekkarinen <jose.pekkarinen@nokia.com>2016-05-18 13:18:31 +0300
committerJosé Pekkarinen <jose.pekkarinen@nokia.com>2016-05-18 13:42:15 +0300
commit437fd90c0250dee670290f9b714253671a990160 (patch)
treeb871786c360704244a07411c69fb58da9ead4a06 /qemu/target-mips/helper.c
parent5bbd6fe9b8bab2a93e548c5a53b032d1939eec05 (diff)
These changes are the raw update to qemu-2.6.
Collission happened in the following patches: migration: do cleanup operation after completion(738df5b9) Bug fix.(1750c932f86) kvmclock: add a new function to update env->tsc.(b52baab2) The code provided by the patches was already in the upstreamed version. Change-Id: I3cc11841a6a76ae20887b2e245710199e1ea7f9a Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>
Diffstat (limited to 'qemu/target-mips/helper.c')
-rw-r--r--qemu/target-mips/helper.c62
1 files changed, 32 insertions, 30 deletions
diff --git a/qemu/target-mips/helper.c b/qemu/target-mips/helper.c
index 04ba19fd4..1004edee0 100644
--- a/qemu/target-mips/helper.c
+++ b/qemu/target-mips/helper.c
@@ -16,16 +16,12 @@
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, see <http://www.gnu.org/licenses/>.
*/
-#include <stdarg.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-#include <inttypes.h>
-#include <signal.h>
+#include "qemu/osdep.h"
#include "cpu.h"
#include "sysemu/kvm.h"
#include "exec/cpu_ldst.h"
+#include "exec/log.h"
enum {
TLBRET_XI = -6,
@@ -127,10 +123,6 @@ static int get_physical_address (CPUMIPSState *env, hwaddr *physical,
/* effective address (modified for KVM T&E kernel segments) */
target_ulong address = real_address;
-#if 0
- qemu_log("user mode %d h %08x\n", user_mode, env->hflags);
-#endif
-
#define USEG_LIMIT 0x7FFFFFFFUL
#define KSEG0_BASE 0x80000000UL
#define KSEG1_BASE 0xA0000000UL
@@ -227,11 +219,6 @@ static int get_physical_address (CPUMIPSState *env, hwaddr *physical,
ret = TLBRET_BADADDR;
}
}
-#if 0
- qemu_log(TARGET_FMT_lx " %d %d => %" HWADDR_PRIx " %d (%d)\n",
- address, rw, access_type, *physical, *prot, ret);
-#endif
-
return ret;
}
#endif
@@ -303,9 +290,10 @@ static void raise_mmu_exception(CPUMIPSState *env, target_ulong address,
(env->CP0_EntryHi & 0xFF) | (address & (TARGET_PAGE_MASK << 1));
#if defined(TARGET_MIPS64)
env->CP0_EntryHi &= env->SEGMask;
- env->CP0_XContext = (env->CP0_XContext & ((~0ULL) << (env->SEGBITS - 7))) |
- ((address & 0xC00000000000ULL) >> (55 - env->SEGBITS)) |
- ((address & ((1ULL << env->SEGBITS) - 1) & 0xFFFFFFFFFFFFE000ULL) >> 9);
+ env->CP0_XContext =
+ /* PTEBase */ (env->CP0_XContext & ((~0ULL) << (env->SEGBITS - 7))) |
+ /* R */ (extract64(address, 62, 2) << (env->SEGBITS - 9)) |
+ /* BadVPN2 */ (extract64(address, 13, env->SEGBITS - 13) << 4);
#endif
cs->exception_index = exception;
env->error_code = error_code;
@@ -487,14 +475,16 @@ void mips_cpu_do_interrupt(CPUState *cs)
int cause = -1;
const char *name;
- if (qemu_log_enabled() && cs->exception_index != EXCP_EXT_INTERRUPT) {
+ if (qemu_loglevel_mask(CPU_LOG_INT)
+ && cs->exception_index != EXCP_EXT_INTERRUPT) {
if (cs->exception_index < 0 || cs->exception_index > EXCP_LAST) {
name = "unknown";
} else {
name = excp_names[cs->exception_index];
}
- qemu_log("%s enter: PC " TARGET_FMT_lx " EPC " TARGET_FMT_lx " %s exception\n",
+ qemu_log("%s enter: PC " TARGET_FMT_lx " EPC " TARGET_FMT_lx
+ " %s exception\n",
__func__, env->active_tc.PC, env->CP0_EPC, name);
}
if (cs->exception_index == EXCP_EXT_INTERRUPT &&
@@ -531,6 +521,10 @@ void mips_cpu_do_interrupt(CPUState *cs)
enter_debug_mode:
if (env->insn_flags & ISA_MIPS3) {
env->hflags |= MIPS_HFLAG_64;
+ if (!(env->insn_flags & ISA_MIPS64R6) ||
+ env->CP0_Status & (1 << CP0St_KX)) {
+ env->hflags &= ~MIPS_HFLAG_AWRAP;
+ }
}
env->hflags |= MIPS_HFLAG_DM | MIPS_HFLAG_CP0;
env->hflags &= ~(MIPS_HFLAG_KSU);
@@ -555,6 +549,10 @@ void mips_cpu_do_interrupt(CPUState *cs)
env->CP0_Status |= (1 << CP0St_ERL) | (1 << CP0St_BEV);
if (env->insn_flags & ISA_MIPS3) {
env->hflags |= MIPS_HFLAG_64;
+ if (!(env->insn_flags & ISA_MIPS64R6) ||
+ env->CP0_Status & (1 << CP0St_KX)) {
+ env->hflags &= ~MIPS_HFLAG_AWRAP;
+ }
}
env->hflags |= MIPS_HFLAG_CP0;
env->hflags &= ~(MIPS_HFLAG_KSU);
@@ -700,7 +698,7 @@ void mips_cpu_do_interrupt(CPUState *cs)
goto set_EPC;
case EXCP_DWATCH:
cause = 23;
- /* XXX: TODO: manage defered watch exceptions */
+ /* XXX: TODO: manage deferred watch exceptions */
goto set_EPC;
case EXCP_MCHECK:
cause = 24;
@@ -732,6 +730,10 @@ void mips_cpu_do_interrupt(CPUState *cs)
env->CP0_Status |= (1 << CP0St_EXL);
if (env->insn_flags & ISA_MIPS3) {
env->hflags |= MIPS_HFLAG_64;
+ if (!(env->insn_flags & ISA_MIPS64R6) ||
+ env->CP0_Status & (1 << CP0St_KX)) {
+ env->hflags &= ~MIPS_HFLAG_AWRAP;
+ }
}
env->hflags |= MIPS_HFLAG_CP0;
env->hflags &= ~(MIPS_HFLAG_KSU);
@@ -747,16 +749,15 @@ void mips_cpu_do_interrupt(CPUState *cs)
env->CP0_Cause = (env->CP0_Cause & ~(0x1f << CP0Ca_EC)) | (cause << CP0Ca_EC);
break;
default:
- qemu_log("Invalid MIPS exception %d. Exiting\n", cs->exception_index);
- printf("Invalid MIPS exception %d. Exiting\n", cs->exception_index);
- exit(1);
+ abort();
}
- if (qemu_log_enabled() && cs->exception_index != EXCP_EXT_INTERRUPT) {
+ if (qemu_loglevel_mask(CPU_LOG_INT)
+ && cs->exception_index != EXCP_EXT_INTERRUPT) {
qemu_log("%s: PC " TARGET_FMT_lx " EPC " TARGET_FMT_lx " cause %d\n"
- " S %08x C %08x A " TARGET_FMT_lx " D " TARGET_FMT_lx "\n",
- __func__, env->active_tc.PC, env->CP0_EPC, cause,
- env->CP0_Status, env->CP0_Cause, env->CP0_BadVAddr,
- env->CP0_DEPC);
+ " S %08x C %08x A " TARGET_FMT_lx " D " TARGET_FMT_lx "\n",
+ __func__, env->active_tc.PC, env->CP0_EPC, cause,
+ env->CP0_Status, env->CP0_Cause, env->CP0_BadVAddr,
+ env->CP0_DEPC);
}
#endif
cs->exception_index = EXCP_NONE;
@@ -768,7 +769,8 @@ bool mips_cpu_exec_interrupt(CPUState *cs, int interrupt_request)
MIPSCPU *cpu = MIPS_CPU(cs);
CPUMIPSState *env = &cpu->env;
- if (cpu_mips_hw_interrupts_pending(env)) {
+ if (cpu_mips_hw_interrupts_enabled(env) &&
+ cpu_mips_hw_interrupts_pending(env)) {
/* Raise it */
cs->exception_index = EXCP_EXT_INTERRUPT;
env->error_code = 0;