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[Qemu-devel] [PULL 14/21] hw/intc/arm_gicv3_kvm: Add ICC_SRE_EL1 registe
From: |
Peter Maydell |
Subject: |
[Qemu-devel] [PULL 14/21] hw/intc/arm_gicv3_kvm: Add ICC_SRE_EL1 register to vmstate |
Date: |
Tue, 28 Feb 2017 17:16:09 +0000 |
From: Vijaya Kumar K <address@hidden>
To Save and Restore ICC_SRE_EL1 register introduce vmstate
subsection and load only if non-zero.
Also initialize icc_sre_el1 with to 0x7 in pre_load
function.
Signed-off-by: Vijaya Kumar K <address@hidden>
Reviewed-by: Peter Maydell <address@hidden>
Reviewed-by: Eric Auger <address@hidden>
Message-id: address@hidden
Signed-off-by: Peter Maydell <address@hidden>
---
include/hw/intc/arm_gicv3_common.h | 1 +
hw/intc/arm_gicv3_common.c | 36 ++++++++++++++++++++++++++++++++++++
2 files changed, 37 insertions(+)
diff --git a/include/hw/intc/arm_gicv3_common.h
b/include/hw/intc/arm_gicv3_common.h
index 4156051..bccdfe1 100644
--- a/include/hw/intc/arm_gicv3_common.h
+++ b/include/hw/intc/arm_gicv3_common.h
@@ -172,6 +172,7 @@ struct GICv3CPUState {
uint8_t gicr_ipriorityr[GIC_INTERNAL];
/* CPU interface */
+ uint64_t icc_sre_el1;
uint64_t icc_ctlr_el1[2];
uint64_t icc_pmr_el1;
uint64_t icc_bpr[3];
diff --git a/hw/intc/arm_gicv3_common.c b/hw/intc/arm_gicv3_common.c
index 16b9b0f..5b0e456 100644
--- a/hw/intc/arm_gicv3_common.c
+++ b/hw/intc/arm_gicv3_common.c
@@ -70,6 +70,38 @@ static const VMStateDescription vmstate_gicv3_cpu_virt = {
}
};
+static int icc_sre_el1_reg_pre_load(void *opaque)
+{
+ GICv3CPUState *cs = opaque;
+
+ /*
+ * If the sre_el1 subsection is not transferred this
+ * means SRE_EL1 is 0x7 (which might not be the same as
+ * our reset value).
+ */
+ cs->icc_sre_el1 = 0x7;
+ return 0;
+}
+
+static bool icc_sre_el1_reg_needed(void *opaque)
+{
+ GICv3CPUState *cs = opaque;
+
+ return cs->icc_sre_el1 != 7;
+}
+
+const VMStateDescription vmstate_gicv3_cpu_sre_el1 = {
+ .name = "arm_gicv3_cpu/sre_el1",
+ .version_id = 1,
+ .minimum_version_id = 1,
+ .pre_load = icc_sre_el1_reg_pre_load,
+ .needed = icc_sre_el1_reg_needed,
+ .fields = (VMStateField[]) {
+ VMSTATE_UINT64(icc_sre_el1, GICv3CPUState),
+ VMSTATE_END_OF_LIST()
+ }
+};
+
static const VMStateDescription vmstate_gicv3_cpu = {
.name = "arm_gicv3_cpu",
.version_id = 1,
@@ -100,6 +132,10 @@ static const VMStateDescription vmstate_gicv3_cpu = {
.subsections = (const VMStateDescription * []) {
&vmstate_gicv3_cpu_virt,
NULL
+ },
+ .subsections = (const VMStateDescription * []) {
+ &vmstate_gicv3_cpu_sre_el1,
+ NULL
}
};
--
2.7.4
- [Qemu-devel] [PULL 11/21] stm32f205: Rename 'nvic' local to 'armv7m', (continued)
- [Qemu-devel] [PULL 11/21] stm32f205: Rename 'nvic' local to 'armv7m', Peter Maydell, 2017/02/28
- [Qemu-devel] [PULL 01/21] armv7m: Abstract out the "load kernel" code, Peter Maydell, 2017/02/28
- [Qemu-devel] [PULL 04/21] armv7m: Use QOMified armv7m object in armv7m_init(), Peter Maydell, 2017/02/28
- [Qemu-devel] [PULL 18/21] qdev: Have qdev_set_parent_bus() handle devices already on a bus, Peter Maydell, 2017/02/28
- [Qemu-devel] [PULL 17/21] hw/intc/arm_gicv3_kvm: Reset GICv3 cpu interface registers, Peter Maydell, 2017/02/28
- [Qemu-devel] [PULL 07/21] armv7m: Make bitband device take the address space to access, Peter Maydell, 2017/02/28
- [Qemu-devel] [PULL 09/21] armv7m: Split systick out from NVIC, Peter Maydell, 2017/02/28
- [Qemu-devel] [PULL 21/21] bcm2835: add sdhost and gpio controllers, Peter Maydell, 2017/02/28
- [Qemu-devel] [PULL 15/21] hw/intc/arm_gicv3_kvm: Implement get/put functions, Peter Maydell, 2017/02/28
- [Qemu-devel] [PULL 10/21] stm32f205: Create armv7m object without using armv7m_init(), Peter Maydell, 2017/02/28
- [Qemu-devel] [PULL 14/21] hw/intc/arm_gicv3_kvm: Add ICC_SRE_EL1 register to vmstate,
Peter Maydell <=
- [Qemu-devel] [PULL 16/21] target-arm: Add GICv3CPUState in CPUARMState struct, Peter Maydell, 2017/02/28
- [Qemu-devel] [PULL 19/21] hw/sd: add card-reparenting function, Peter Maydell, 2017/02/28
- [Qemu-devel] [PULL 20/21] bcm2835_gpio: add bcm2835 gpio controller, Peter Maydell, 2017/02/28
- [Qemu-devel] [PULL 06/21] armv7m: Make NVIC expose a memory region rather than mapping itself, Peter Maydell, 2017/02/28
- [Qemu-devel] [PULL 13/21] update Linux headers to 4.11, Peter Maydell, 2017/02/28
- [Qemu-devel] [PULL 12/21] update-linux-headers: update for 4.11, Peter Maydell, 2017/02/28