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authorPeter Maydell <peter.maydell@linaro.org>2014-05-15 16:24:12 +0100
committerPeter Maydell <peter.maydell@linaro.org>2014-05-15 16:24:12 +0100
commit6b7aa99eb4e4cfbf808825cce8e6ad92ec281d96 (patch)
tree518f21ba8f80fcc7b3e56ec1edc12c233927332c /target-arm
parentef3cb5ca82c341e575ee5cb9a9dd8edc6aa96b1b (diff)
parent89f26e6b7b5e5c9657f2abd6ef5a336bea11add2 (diff)
downloadhqemu-6b7aa99eb4e4cfbf808825cce8e6ad92ec281d96.zip
hqemu-6b7aa99eb4e4cfbf808825cce8e6ad92ec281d96.tar.gz
Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20140513' into staging
target-arm queue: * update libvixl to 1.4 * remove version_minimum_id_old from ARM devices * stellaris_enet tx/rx/migration overhaul * various minor fixes for coverity issues # gpg: Signature made Tue 13 May 2014 16:25:12 BST using RSA key ID 14360CDE # gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>" * remotes/pmaydell/tags/pull-target-arm-20140513: hw/arm/omap_gpmc: Avoid buffer overrun filling prefetch FIFO hw/arm/stellaris: Correct handling of GPTM TAR register hw/timer/exynos4210_mct: Avoid overflow in exynos4210_ltick_recalc_count hw/dma/omap_dma: Add (uint32_t) casts when shifting uint16_t by 16 hw/arm/omap1: Avoid unintended sign extension writing omap_rtc YEARS_REG hw/net/cadence_gem: Remove dead code hw/intc/allwinner-a10-pic: Add missing 'break' target-arm/helper.c: Don't flush the TLB if SCTLR is rewritten unchanged hw/net/stellaris_enet: Convert to vmstate hw/net/stellaris_enet: Get rid of rx_fifo pointer hw/net/stellaris_enet: Fix debug format strings hw/net/stellaris_enet: Correctly implement the TR and THR registers hw/net/stellaris_enet: Rewrite tx fifo handling code hw/net/stellaris_enet: Correct handling of packet padding hw/net/stellaris_enet: Restructure tx_fifo code to avoid buffer overrun savevm: Remove all the unneeded version_minimum_id_old (arm) disas/libvixl: Update to libvixl 1.4 Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'target-arm')
-rw-r--r--target-arm/helper.c7
-rw-r--r--target-arm/machine.c5
2 files changed, 7 insertions, 5 deletions
diff --git a/target-arm/helper.c b/target-arm/helper.c
index 3be917c..417161e 100644
--- a/target-arm/helper.c
+++ b/target-arm/helper.c
@@ -2081,6 +2081,13 @@ static void sctlr_write(CPUARMState *env, const ARMCPRegInfo *ri,
{
ARMCPU *cpu = arm_env_get_cpu(env);
+ if (env->cp15.c1_sys == value) {
+ /* Skip the TLB flush if nothing actually changed; Linux likes
+ * to do a lot of pointless SCTLR writes.
+ */
+ return;
+ }
+
env->cp15.c1_sys = value;
/* ??? Lots of these bits are not implemented. */
/* This may enable/disable the MMU, so do a TLB flush. */
diff --git a/target-arm/machine.c b/target-arm/machine.c
index 810ba27..5092dcd 100644
--- a/target-arm/machine.c
+++ b/target-arm/machine.c
@@ -39,7 +39,6 @@ static const VMStateDescription vmstate_vfp = {
.name = "cpu/vfp",
.version_id = 3,
.minimum_version_id = 3,
- .minimum_version_id_old = 3,
.fields = (VMStateField[]) {
VMSTATE_FLOAT64_ARRAY(env.vfp.regs, ARMCPU, 64),
/* The xregs array is a little awkward because element 1 (FPSCR)
@@ -72,7 +71,6 @@ static const VMStateDescription vmstate_iwmmxt = {
.name = "cpu/iwmmxt",
.version_id = 1,
.minimum_version_id = 1,
- .minimum_version_id_old = 1,
.fields = (VMStateField[]) {
VMSTATE_UINT64_ARRAY(env.iwmmxt.regs, ARMCPU, 16),
VMSTATE_UINT32_ARRAY(env.iwmmxt.cregs, ARMCPU, 16),
@@ -92,7 +90,6 @@ static const VMStateDescription vmstate_m = {
.name = "cpu/m",
.version_id = 1,
.minimum_version_id = 1,
- .minimum_version_id_old = 1,
.fields = (VMStateField[]) {
VMSTATE_UINT32(env.v7m.other_sp, ARMCPU),
VMSTATE_UINT32(env.v7m.vecbase, ARMCPU),
@@ -116,7 +113,6 @@ static const VMStateDescription vmstate_thumb2ee = {
.name = "cpu/thumb2ee",
.version_id = 1,
.minimum_version_id = 1,
- .minimum_version_id_old = 1,
.fields = (VMStateField[]) {
VMSTATE_UINT32(env.teecr, ARMCPU),
VMSTATE_UINT32(env.teehbr, ARMCPU),
@@ -224,7 +220,6 @@ const VMStateDescription vmstate_arm_cpu = {
.name = "cpu",
.version_id = 17,
.minimum_version_id = 17,
- .minimum_version_id_old = 17,
.pre_save = cpu_pre_save,
.post_load = cpu_post_load,
.fields = (VMStateField[]) {
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