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-rw-r--r--arch/loongarch/Kconfig1
-rw-r--r--arch/loongarch/configs/loongson3_defconfig1
-rw-r--r--arch/loongarch/include/asm/kasan.h7
-rw-r--r--arch/loongarch/include/asm/kvm_pch_pic.h15
-rw-r--r--arch/loongarch/include/uapi/asm/kvm.h1
-rw-r--r--arch/loongarch/kvm/exit.c19
-rw-r--r--arch/loongarch/kvm/intc/ipi.c80
-rw-r--r--arch/loongarch/kvm/intc/pch_pic.c239
-rw-r--r--arch/loongarch/kvm/trace.h35
-rw-r--r--arch/loongarch/kvm/vcpu.c2
-rw-r--r--arch/loongarch/kvm/vm.c4
-rw-r--r--arch/loongarch/mm/kasan_init.c8
12 files changed, 215 insertions, 197 deletions
diff --git a/arch/loongarch/Kconfig b/arch/loongarch/Kconfig
index e6225539579f..ea683bcea14c 100644
--- a/arch/loongarch/Kconfig
+++ b/arch/loongarch/Kconfig
@@ -9,6 +9,7 @@ config LOONGARCH
select ACPI_PPTT if ACPI
select ACPI_SYSTEM_POWER_STATES_SUPPORT if ACPI
select ARCH_BINFMT_ELF_STATE
+ select ARCH_NEEDS_DEFER_KASAN
select ARCH_DISABLE_KASAN_INLINE
select ARCH_ENABLE_MEMORY_HOTPLUG
select ARCH_ENABLE_MEMORY_HOTREMOVE
diff --git a/arch/loongarch/configs/loongson3_defconfig b/arch/loongarch/configs/loongson3_defconfig
index 34eaee0384c9..2b8df0e9e42a 100644
--- a/arch/loongarch/configs/loongson3_defconfig
+++ b/arch/loongarch/configs/loongson3_defconfig
@@ -106,7 +106,6 @@ CONFIG_CMDLINE_PARTITION=y
CONFIG_IOSCHED_BFQ=y
CONFIG_BFQ_GROUP_IOSCHED=y
CONFIG_BINFMT_MISC=m
-CONFIG_ZPOOL=y
CONFIG_ZSWAP=y
CONFIG_ZSWAP_COMPRESSOR_DEFAULT_ZSTD=y
CONFIG_ZSMALLOC=y
diff --git a/arch/loongarch/include/asm/kasan.h b/arch/loongarch/include/asm/kasan.h
index 62f139a9c87d..0e50e5b5e056 100644
--- a/arch/loongarch/include/asm/kasan.h
+++ b/arch/loongarch/include/asm/kasan.h
@@ -66,7 +66,6 @@
#define XKPRANGE_WC_SHADOW_OFFSET (KASAN_SHADOW_START + XKPRANGE_WC_KASAN_OFFSET)
#define XKVRANGE_VC_SHADOW_OFFSET (KASAN_SHADOW_START + XKVRANGE_VC_KASAN_OFFSET)
-extern bool kasan_early_stage;
extern unsigned char kasan_early_shadow_page[PAGE_SIZE];
#define kasan_mem_to_shadow kasan_mem_to_shadow
@@ -75,12 +74,6 @@ void *kasan_mem_to_shadow(const void *addr);
#define kasan_shadow_to_mem kasan_shadow_to_mem
const void *kasan_shadow_to_mem(const void *shadow_addr);
-#define kasan_arch_is_ready kasan_arch_is_ready
-static __always_inline bool kasan_arch_is_ready(void)
-{
- return !kasan_early_stage;
-}
-
#define addr_has_metadata addr_has_metadata
static __always_inline bool addr_has_metadata(const void *addr)
{
diff --git a/arch/loongarch/include/asm/kvm_pch_pic.h b/arch/loongarch/include/asm/kvm_pch_pic.h
index e6df6a4c1c70..7f33a3039272 100644
--- a/arch/loongarch/include/asm/kvm_pch_pic.h
+++ b/arch/loongarch/include/asm/kvm_pch_pic.h
@@ -34,13 +34,26 @@
#define PCH_PIC_INT_ISR_END 0x3af
#define PCH_PIC_POLARITY_START 0x3e0
#define PCH_PIC_POLARITY_END 0x3e7
-#define PCH_PIC_INT_ID_VAL 0x7000000UL
+#define PCH_PIC_INT_ID_VAL 0x7UL
#define PCH_PIC_INT_ID_VER 0x1UL
+union pch_pic_id {
+ struct {
+ uint8_t reserved_0[3];
+ uint8_t id;
+ uint8_t version;
+ uint8_t reserved_1;
+ uint8_t irq_num;
+ uint8_t reserved_2;
+ } desc;
+ uint64_t data;
+};
+
struct loongarch_pch_pic {
spinlock_t lock;
struct kvm *kvm;
struct kvm_io_device device;
+ union pch_pic_id id;
uint64_t mask; /* 1:disable irq, 0:enable irq */
uint64_t htmsi_en; /* 1:msi */
uint64_t edge; /* 1:edge triggered, 0:level triggered */
diff --git a/arch/loongarch/include/uapi/asm/kvm.h b/arch/loongarch/include/uapi/asm/kvm.h
index 5f354f5c6847..57ba1a563bb1 100644
--- a/arch/loongarch/include/uapi/asm/kvm.h
+++ b/arch/loongarch/include/uapi/asm/kvm.h
@@ -103,6 +103,7 @@ struct kvm_fpu {
#define KVM_LOONGARCH_VM_FEAT_PMU 5
#define KVM_LOONGARCH_VM_FEAT_PV_IPI 6
#define KVM_LOONGARCH_VM_FEAT_PV_STEALTIME 7
+#define KVM_LOONGARCH_VM_FEAT_PTW 8
/* Device Control API on vcpu fd */
#define KVM_LOONGARCH_VCPU_CPUCFG 0
diff --git a/arch/loongarch/kvm/exit.c b/arch/loongarch/kvm/exit.c
index 6c9c7de7226b..cb493980d874 100644
--- a/arch/loongarch/kvm/exit.c
+++ b/arch/loongarch/kvm/exit.c
@@ -218,16 +218,16 @@ int kvm_emu_iocsr(larch_inst inst, struct kvm_run *run, struct kvm_vcpu *vcpu)
}
trace_kvm_iocsr(KVM_TRACE_IOCSR_WRITE, run->iocsr_io.len, addr, val);
} else {
+ vcpu->arch.io_gpr = rd; /* Set register id for iocsr read completion */
idx = srcu_read_lock(&vcpu->kvm->srcu);
- ret = kvm_io_bus_read(vcpu, KVM_IOCSR_BUS, addr, run->iocsr_io.len, val);
+ ret = kvm_io_bus_read(vcpu, KVM_IOCSR_BUS, addr,
+ run->iocsr_io.len, run->iocsr_io.data);
srcu_read_unlock(&vcpu->kvm->srcu, idx);
- if (ret == 0)
+ if (ret == 0) {
+ kvm_complete_iocsr_read(vcpu, run);
ret = EMULATE_DONE;
- else {
+ } else
ret = EMULATE_DO_IOCSR;
- /* Save register id for iocsr read completion */
- vcpu->arch.io_gpr = rd;
- }
trace_kvm_iocsr(KVM_TRACE_IOCSR_READ, run->iocsr_io.len, addr, NULL);
}
@@ -468,6 +468,8 @@ int kvm_emu_mmio_read(struct kvm_vcpu *vcpu, larch_inst inst)
if (ret == EMULATE_DO_MMIO) {
trace_kvm_mmio(KVM_TRACE_MMIO_READ, run->mmio.len, run->mmio.phys_addr, NULL);
+ vcpu->arch.io_gpr = rd; /* Set for kvm_complete_mmio_read() use */
+
/*
* If mmio device such as PCH-PIC is emulated in KVM,
* it need not return to user space to handle the mmio
@@ -475,16 +477,15 @@ int kvm_emu_mmio_read(struct kvm_vcpu *vcpu, larch_inst inst)
*/
idx = srcu_read_lock(&vcpu->kvm->srcu);
ret = kvm_io_bus_read(vcpu, KVM_MMIO_BUS, vcpu->arch.badv,
- run->mmio.len, &vcpu->arch.gprs[rd]);
+ run->mmio.len, run->mmio.data);
srcu_read_unlock(&vcpu->kvm->srcu, idx);
if (!ret) {
+ kvm_complete_mmio_read(vcpu, run);
update_pc(&vcpu->arch);
vcpu->mmio_needed = 0;
return EMULATE_DONE;
}
- /* Set for kvm_complete_mmio_read() use */
- vcpu->arch.io_gpr = rd;
run->mmio.is_write = 0;
vcpu->mmio_is_write = 0;
return EMULATE_DO_MMIO;
diff --git a/arch/loongarch/kvm/intc/ipi.c b/arch/loongarch/kvm/intc/ipi.c
index 5a8481dda052..05cefd29282e 100644
--- a/arch/loongarch/kvm/intc/ipi.c
+++ b/arch/loongarch/kvm/intc/ipi.c
@@ -7,13 +7,26 @@
#include <asm/kvm_ipi.h>
#include <asm/kvm_vcpu.h>
-static void ipi_send(struct kvm *kvm, uint64_t data)
+static void ipi_set(struct kvm_vcpu *vcpu, uint32_t data)
{
- int cpu, action;
uint32_t status;
- struct kvm_vcpu *vcpu;
struct kvm_interrupt irq;
+ spin_lock(&vcpu->arch.ipi_state.lock);
+ status = vcpu->arch.ipi_state.status;
+ vcpu->arch.ipi_state.status |= data;
+ spin_unlock(&vcpu->arch.ipi_state.lock);
+ if ((status == 0) && data) {
+ irq.irq = LARCH_INT_IPI;
+ kvm_vcpu_ioctl_interrupt(vcpu, &irq);
+ }
+}
+
+static void ipi_send(struct kvm *kvm, uint64_t data)
+{
+ int cpu;
+ struct kvm_vcpu *vcpu;
+
cpu = ((data & 0xffffffff) >> 16) & 0x3ff;
vcpu = kvm_get_vcpu_by_cpuid(kvm, cpu);
if (unlikely(vcpu == NULL)) {
@@ -21,15 +34,7 @@ static void ipi_send(struct kvm *kvm, uint64_t data)
return;
}
- action = BIT(data & 0x1f);
- spin_lock(&vcpu->arch.ipi_state.lock);
- status = vcpu->arch.ipi_state.status;
- vcpu->arch.ipi_state.status |= action;
- spin_unlock(&vcpu->arch.ipi_state.lock);
- if (status == 0) {
- irq.irq = LARCH_INT_IPI;
- kvm_vcpu_ioctl_interrupt(vcpu, &irq);
- }
+ ipi_set(vcpu, BIT(data & 0x1f));
}
static void ipi_clear(struct kvm_vcpu *vcpu, uint64_t data)
@@ -96,6 +101,34 @@ static void write_mailbox(struct kvm_vcpu *vcpu, int offset, uint64_t data, int
spin_unlock(&vcpu->arch.ipi_state.lock);
}
+static int mail_send(struct kvm *kvm, uint64_t data)
+{
+ int i, cpu, mailbox, offset;
+ uint32_t val = 0, mask = 0;
+ struct kvm_vcpu *vcpu;
+
+ cpu = ((data & 0xffffffff) >> 16) & 0x3ff;
+ vcpu = kvm_get_vcpu_by_cpuid(kvm, cpu);
+ if (unlikely(vcpu == NULL)) {
+ kvm_err("%s: invalid target cpu: %d\n", __func__, cpu);
+ return -EINVAL;
+ }
+ mailbox = ((data & 0xffffffff) >> 2) & 0x7;
+ offset = IOCSR_IPI_BUF_20 + mailbox * 4;
+ if ((data >> 27) & 0xf) {
+ val = read_mailbox(vcpu, offset, 4);
+ for (i = 0; i < 4; i++)
+ if (data & (BIT(27 + i)))
+ mask |= (0xff << (i * 8));
+ val &= mask;
+ }
+
+ val |= ((uint32_t)(data >> 32) & ~mask);
+ write_mailbox(vcpu, offset, val, 4);
+
+ return 0;
+}
+
static int send_ipi_data(struct kvm_vcpu *vcpu, gpa_t addr, uint64_t data)
{
int i, idx, ret;
@@ -132,23 +165,6 @@ static int send_ipi_data(struct kvm_vcpu *vcpu, gpa_t addr, uint64_t data)
return ret;
}
-static int mail_send(struct kvm *kvm, uint64_t data)
-{
- int cpu, mailbox, offset;
- struct kvm_vcpu *vcpu;
-
- cpu = ((data & 0xffffffff) >> 16) & 0x3ff;
- vcpu = kvm_get_vcpu_by_cpuid(kvm, cpu);
- if (unlikely(vcpu == NULL)) {
- kvm_err("%s: invalid target cpu: %d\n", __func__, cpu);
- return -EINVAL;
- }
- mailbox = ((data & 0xffffffff) >> 2) & 0x7;
- offset = IOCSR_IPI_BASE + IOCSR_IPI_BUF_20 + mailbox * 4;
-
- return send_ipi_data(vcpu, offset, data);
-}
-
static int any_send(struct kvm *kvm, uint64_t data)
{
int cpu, offset;
@@ -231,7 +247,7 @@ static int loongarch_ipi_writel(struct kvm_vcpu *vcpu, gpa_t addr, int len, cons
spin_unlock(&vcpu->arch.ipi_state.lock);
break;
case IOCSR_IPI_SET:
- ret = -EINVAL;
+ ipi_set(vcpu, data);
break;
case IOCSR_IPI_CLEAR:
/* Just clear the status of the current vcpu */
@@ -250,10 +266,10 @@ static int loongarch_ipi_writel(struct kvm_vcpu *vcpu, gpa_t addr, int len, cons
ipi_send(vcpu->kvm, data);
break;
case IOCSR_MAIL_SEND:
- ret = mail_send(vcpu->kvm, *(uint64_t *)val);
+ ret = mail_send(vcpu->kvm, data);
break;
case IOCSR_ANY_SEND:
- ret = any_send(vcpu->kvm, *(uint64_t *)val);
+ ret = any_send(vcpu->kvm, data);
break;
default:
kvm_err("%s: unknown addr: %llx\n", __func__, addr);
diff --git a/arch/loongarch/kvm/intc/pch_pic.c b/arch/loongarch/kvm/intc/pch_pic.c
index baf3b4faf7ea..a698a73de399 100644
--- a/arch/loongarch/kvm/intc/pch_pic.c
+++ b/arch/loongarch/kvm/intc/pch_pic.c
@@ -35,16 +35,11 @@ static void pch_pic_update_irq(struct loongarch_pch_pic *s, int irq, int level)
/* update batch irqs, the irq_mask is a bitmap of irqs */
static void pch_pic_update_batch_irqs(struct loongarch_pch_pic *s, u64 irq_mask, int level)
{
- int irq, bits;
+ unsigned int irq;
+ DECLARE_BITMAP(irqs, 64) = { BITMAP_FROM_U64(irq_mask) };
- /* find each irq by irqs bitmap and update each irq */
- bits = sizeof(irq_mask) * 8;
- irq = find_first_bit((void *)&irq_mask, bits);
- while (irq < bits) {
+ for_each_set_bit(irq, irqs, 64)
pch_pic_update_irq(s, irq, level);
- bitmap_clear((void *)&irq_mask, irq, 1);
- irq = find_first_bit((void *)&irq_mask, bits);
- }
}
/* called when a irq is triggered in pch pic */
@@ -77,109 +72,65 @@ void pch_msi_set_irq(struct kvm *kvm, int irq, int level)
eiointc_set_irq(kvm->arch.eiointc, irq, level);
}
-/*
- * pch pic register is 64-bit, but it is accessed by 32-bit,
- * so we use high to get whether low or high 32 bits we want
- * to read.
- */
-static u32 pch_pic_read_reg(u64 *s, int high)
-{
- u64 val = *s;
-
- /* read the high 32 bits when high is 1 */
- return high ? (u32)(val >> 32) : (u32)val;
-}
-
-/*
- * pch pic register is 64-bit, but it is accessed by 32-bit,
- * so we use high to get whether low or high 32 bits we want
- * to write.
- */
-static u32 pch_pic_write_reg(u64 *s, int high, u32 v)
-{
- u64 val = *s, data = v;
-
- if (high) {
- /*
- * Clear val high 32 bits
- * Write the high 32 bits when the high is 1
- */
- *s = (val << 32 >> 32) | (data << 32);
- val >>= 32;
- } else
- /*
- * Clear val low 32 bits
- * Write the low 32 bits when the high is 0
- */
- *s = (val >> 32 << 32) | v;
-
- return (u32)val;
-}
-
static int loongarch_pch_pic_read(struct loongarch_pch_pic *s, gpa_t addr, int len, void *val)
{
- int offset, index, ret = 0;
- u32 data = 0;
- u64 int_id = 0;
+ int ret = 0, offset;
+ u64 data = 0;
+ void *ptemp;
offset = addr - s->pch_pic_base;
+ offset -= offset & 7;
spin_lock(&s->lock);
switch (offset) {
case PCH_PIC_INT_ID_START ... PCH_PIC_INT_ID_END:
- /* int id version */
- int_id |= (u64)PCH_PIC_INT_ID_VER << 32;
- /* irq number */
- int_id |= (u64)31 << (32 + 16);
- /* int id value */
- int_id |= PCH_PIC_INT_ID_VAL;
- *(u64 *)val = int_id;
+ data = s->id.data;
break;
case PCH_PIC_MASK_START ... PCH_PIC_MASK_END:
- offset -= PCH_PIC_MASK_START;
- index = offset >> 2;
- /* read mask reg */
- data = pch_pic_read_reg(&s->mask, index);
- *(u32 *)val = data;
+ data = s->mask;
break;
case PCH_PIC_HTMSI_EN_START ... PCH_PIC_HTMSI_EN_END:
- offset -= PCH_PIC_HTMSI_EN_START;
- index = offset >> 2;
/* read htmsi enable reg */
- data = pch_pic_read_reg(&s->htmsi_en, index);
- *(u32 *)val = data;
+ data = s->htmsi_en;
break;
case PCH_PIC_EDGE_START ... PCH_PIC_EDGE_END:
- offset -= PCH_PIC_EDGE_START;
- index = offset >> 2;
/* read edge enable reg */
- data = pch_pic_read_reg(&s->edge, index);
- *(u32 *)val = data;
+ data = s->edge;
break;
case PCH_PIC_AUTO_CTRL0_START ... PCH_PIC_AUTO_CTRL0_END:
case PCH_PIC_AUTO_CTRL1_START ... PCH_PIC_AUTO_CTRL1_END:
/* we only use default mode: fixed interrupt distribution mode */
- *(u32 *)val = 0;
break;
case PCH_PIC_ROUTE_ENTRY_START ... PCH_PIC_ROUTE_ENTRY_END:
/* only route to int0: eiointc */
- *(u8 *)val = 1;
+ ptemp = s->route_entry + (offset - PCH_PIC_ROUTE_ENTRY_START);
+ data = *(u64 *)ptemp;
break;
case PCH_PIC_HTMSI_VEC_START ... PCH_PIC_HTMSI_VEC_END:
- offset -= PCH_PIC_HTMSI_VEC_START;
/* read htmsi vector */
- data = s->htmsi_vector[offset];
- *(u8 *)val = data;
+ ptemp = s->htmsi_vector + (offset - PCH_PIC_HTMSI_VEC_START);
+ data = *(u64 *)ptemp;
break;
case PCH_PIC_POLARITY_START ... PCH_PIC_POLARITY_END:
- /* we only use defalut value 0: high level triggered */
- *(u32 *)val = 0;
+ data = s->polarity;
+ break;
+ case PCH_PIC_INT_IRR_START:
+ data = s->irr;
+ break;
+ case PCH_PIC_INT_ISR_START:
+ data = s->isr;
break;
default:
ret = -EINVAL;
}
spin_unlock(&s->lock);
+ if (ret == 0) {
+ offset = (addr - s->pch_pic_base) & 7;
+ data = data >> (offset * 8);
+ memcpy(val, &data, len);
+ }
+
return ret;
}
@@ -210,81 +161,69 @@ static int kvm_pch_pic_read(struct kvm_vcpu *vcpu,
static int loongarch_pch_pic_write(struct loongarch_pch_pic *s, gpa_t addr,
int len, const void *val)
{
- int ret;
- u32 old, data, offset, index;
- u64 irq;
+ int ret = 0, offset;
+ u64 old, data, mask;
+ void *ptemp;
+
+ switch (len) {
+ case 1:
+ data = *(u8 *)val;
+ mask = 0xFF;
+ break;
+ case 2:
+ data = *(u16 *)val;
+ mask = USHRT_MAX;
+ break;
+ case 4:
+ data = *(u32 *)val;
+ mask = UINT_MAX;
+ break;
+ case 8:
+ default:
+ data = *(u64 *)val;
+ mask = ULONG_MAX;
+ break;
+ }
- ret = 0;
- data = *(u32 *)val;
- offset = addr - s->pch_pic_base;
+ offset = (addr - s->pch_pic_base) & 7;
+ mask = mask << (offset * 8);
+ data = data << (offset * 8);
+ offset = (addr - s->pch_pic_base) - offset;
spin_lock(&s->lock);
switch (offset) {
- case PCH_PIC_MASK_START ... PCH_PIC_MASK_END:
- offset -= PCH_PIC_MASK_START;
- /* get whether high or low 32 bits we want to write */
- index = offset >> 2;
- old = pch_pic_write_reg(&s->mask, index, data);
- /* enable irq when mask value change to 0 */
- irq = (old & ~data) << (32 * index);
- pch_pic_update_batch_irqs(s, irq, 1);
- /* disable irq when mask value change to 1 */
- irq = (~old & data) << (32 * index);
- pch_pic_update_batch_irqs(s, irq, 0);
- break;
- case PCH_PIC_HTMSI_EN_START ... PCH_PIC_HTMSI_EN_END:
- offset -= PCH_PIC_HTMSI_EN_START;
- index = offset >> 2;
- pch_pic_write_reg(&s->htmsi_en, index, data);
+ case PCH_PIC_MASK_START:
+ old = s->mask;
+ s->mask = (old & ~mask) | data;
+ if (old & ~data)
+ pch_pic_update_batch_irqs(s, old & ~data, 1);
+ if (~old & data)
+ pch_pic_update_batch_irqs(s, ~old & data, 0);
break;
- case PCH_PIC_EDGE_START ... PCH_PIC_EDGE_END:
- offset -= PCH_PIC_EDGE_START;
- index = offset >> 2;
- /* 1: edge triggered, 0: level triggered */
- pch_pic_write_reg(&s->edge, index, data);
- break;
- case PCH_PIC_CLEAR_START ... PCH_PIC_CLEAR_END:
- offset -= PCH_PIC_CLEAR_START;
- index = offset >> 2;
- /* write 1 to clear edge irq */
- old = pch_pic_read_reg(&s->irr, index);
- /*
- * get the irq bitmap which is edge triggered and
- * already set and to be cleared
- */
- irq = old & pch_pic_read_reg(&s->edge, index) & data;
- /* write irr to the new state where irqs have been cleared */
- pch_pic_write_reg(&s->irr, index, old & ~irq);
- /* update cleared irqs */
- pch_pic_update_batch_irqs(s, irq, 0);
+ case PCH_PIC_HTMSI_EN_START:
+ s->htmsi_en = (s->htmsi_en & ~mask) | data;
break;
- case PCH_PIC_AUTO_CTRL0_START ... PCH_PIC_AUTO_CTRL0_END:
- offset -= PCH_PIC_AUTO_CTRL0_START;
- index = offset >> 2;
- /* we only use default mode: fixed interrupt distribution mode */
- pch_pic_write_reg(&s->auto_ctrl0, index, 0);
+ case PCH_PIC_EDGE_START:
+ s->edge = (s->edge & ~mask) | data;
break;
- case PCH_PIC_AUTO_CTRL1_START ... PCH_PIC_AUTO_CTRL1_END:
- offset -= PCH_PIC_AUTO_CTRL1_START;
- index = offset >> 2;
- /* we only use default mode: fixed interrupt distribution mode */
- pch_pic_write_reg(&s->auto_ctrl1, index, 0);
+ case PCH_PIC_POLARITY_START:
+ s->polarity = (s->polarity & ~mask) | data;
break;
- case PCH_PIC_ROUTE_ENTRY_START ... PCH_PIC_ROUTE_ENTRY_END:
- offset -= PCH_PIC_ROUTE_ENTRY_START;
- /* only route to int0: eiointc */
- s->route_entry[offset] = 1;
+ case PCH_PIC_CLEAR_START:
+ old = s->irr & s->edge & data;
+ if (old) {
+ s->irr &= ~old;
+ pch_pic_update_batch_irqs(s, old, 0);
+ }
break;
case PCH_PIC_HTMSI_VEC_START ... PCH_PIC_HTMSI_VEC_END:
- /* route table to eiointc */
- offset -= PCH_PIC_HTMSI_VEC_START;
- s->htmsi_vector[offset] = (u8)data;
+ ptemp = s->htmsi_vector + (offset - PCH_PIC_HTMSI_VEC_START);
+ *(u64 *)ptemp = (*(u64 *)ptemp & ~mask) | data;
break;
- case PCH_PIC_POLARITY_START ... PCH_PIC_POLARITY_END:
- offset -= PCH_PIC_POLARITY_START;
- index = offset >> 2;
- /* we only use defalut value 0: high level triggered */
- pch_pic_write_reg(&s->polarity, index, 0);
+ /* Not implemented */
+ case PCH_PIC_AUTO_CTRL0_START:
+ case PCH_PIC_AUTO_CTRL1_START:
+ case PCH_PIC_ROUTE_ENTRY_START ... PCH_PIC_ROUTE_ENTRY_END:
break;
default:
ret = -EINVAL;
@@ -484,7 +423,7 @@ static int kvm_setup_default_irq_routing(struct kvm *kvm)
static int kvm_pch_pic_create(struct kvm_device *dev, u32 type)
{
- int ret;
+ int i, ret, irq_num;
struct kvm *kvm = dev->kvm;
struct loongarch_pch_pic *s;
@@ -500,6 +439,22 @@ static int kvm_pch_pic_create(struct kvm_device *dev, u32 type)
if (!s)
return -ENOMEM;
+ /*
+ * Interrupt controller identification register 1
+ * Bit 24-31 Interrupt Controller ID
+ * Interrupt controller identification register 2
+ * Bit 0-7 Interrupt Controller version number
+ * Bit 16-23 The number of interrupt sources supported
+ */
+ irq_num = 32;
+ s->mask = -1UL;
+ s->id.desc.id = PCH_PIC_INT_ID_VAL;
+ s->id.desc.version = PCH_PIC_INT_ID_VER;
+ s->id.desc.irq_num = irq_num - 1;
+ for (i = 0; i < irq_num; i++) {
+ s->route_entry[i] = 1;
+ s->htmsi_vector[i] = i;
+ }
spin_lock_init(&s->lock);
s->kvm = kvm;
kvm->arch.pch_pic = s;
diff --git a/arch/loongarch/kvm/trace.h b/arch/loongarch/kvm/trace.h
index 145514dab6d5..3467ee22b704 100644
--- a/arch/loongarch/kvm/trace.h
+++ b/arch/loongarch/kvm/trace.h
@@ -161,6 +161,41 @@ TRACE_EVENT(kvm_aux,
__entry->pc)
);
+#define KVM_TRACE_IOCSR_READ_UNSATISFIED 0
+#define KVM_TRACE_IOCSR_READ 1
+#define KVM_TRACE_IOCSR_WRITE 2
+
+#define kvm_trace_symbol_iocsr \
+ { KVM_TRACE_IOCSR_READ_UNSATISFIED, "unsatisfied-read" }, \
+ { KVM_TRACE_IOCSR_READ, "read" }, \
+ { KVM_TRACE_IOCSR_WRITE, "write" }
+
+TRACE_EVENT(kvm_iocsr,
+ TP_PROTO(int type, int len, u64 gpa, void *val),
+ TP_ARGS(type, len, gpa, val),
+
+ TP_STRUCT__entry(
+ __field( u32, type )
+ __field( u32, len )
+ __field( u64, gpa )
+ __field( u64, val )
+ ),
+
+ TP_fast_assign(
+ __entry->type = type;
+ __entry->len = len;
+ __entry->gpa = gpa;
+ __entry->val = 0;
+ if (val)
+ memcpy(&__entry->val, val,
+ min_t(u32, sizeof(__entry->val), len));
+ ),
+
+ TP_printk("iocsr %s len %u gpa 0x%llx val 0x%llx",
+ __print_symbolic(__entry->type, kvm_trace_symbol_iocsr),
+ __entry->len, __entry->gpa, __entry->val)
+);
+
TRACE_EVENT(kvm_vpid_change,
TP_PROTO(struct kvm_vcpu *vcpu, unsigned long vpid),
TP_ARGS(vcpu, vpid),
diff --git a/arch/loongarch/kvm/vcpu.c b/arch/loongarch/kvm/vcpu.c
index ce478151466c..9c802f7103c6 100644
--- a/arch/loongarch/kvm/vcpu.c
+++ b/arch/loongarch/kvm/vcpu.c
@@ -680,6 +680,8 @@ static int _kvm_get_cpucfg_mask(int id, u64 *v)
*v |= CPUCFG2_ARMBT;
if (cpu_has_lbt_mips)
*v |= CPUCFG2_MIPSBT;
+ if (cpu_has_ptw)
+ *v |= CPUCFG2_PTW;
return 0;
case LOONGARCH_CPUCFG3:
diff --git a/arch/loongarch/kvm/vm.c b/arch/loongarch/kvm/vm.c
index edccfc8c9cd8..a49b1c1a3dd1 100644
--- a/arch/loongarch/kvm/vm.c
+++ b/arch/loongarch/kvm/vm.c
@@ -146,6 +146,10 @@ static int kvm_vm_feature_has_attr(struct kvm *kvm, struct kvm_device_attr *attr
if (kvm_pvtime_supported())
return 0;
return -ENXIO;
+ case KVM_LOONGARCH_VM_FEAT_PTW:
+ if (cpu_has_ptw)
+ return 0;
+ return -ENXIO;
default:
return -ENXIO;
}
diff --git a/arch/loongarch/mm/kasan_init.c b/arch/loongarch/mm/kasan_init.c
index d2681272d8f0..170da98ad4f5 100644
--- a/arch/loongarch/mm/kasan_init.c
+++ b/arch/loongarch/mm/kasan_init.c
@@ -40,11 +40,9 @@ static pgd_t kasan_pg_dir[PTRS_PER_PGD] __initdata __aligned(PAGE_SIZE);
#define __pte_none(early, pte) (early ? pte_none(pte) : \
((pte_val(pte) & _PFN_MASK) == (unsigned long)__pa(kasan_early_shadow_page)))
-bool kasan_early_stage = true;
-
void *kasan_mem_to_shadow(const void *addr)
{
- if (!kasan_arch_is_ready()) {
+ if (!kasan_enabled()) {
return (void *)(kasan_early_shadow_page);
} else {
unsigned long maddr = (unsigned long)addr;
@@ -298,7 +296,8 @@ void __init kasan_init(void)
kasan_populate_early_shadow(kasan_mem_to_shadow((void *)VMALLOC_START),
kasan_mem_to_shadow((void *)KFENCE_AREA_END));
- kasan_early_stage = false;
+ /* Enable KASAN here before kasan_mem_to_shadow(). */
+ kasan_init_generic();
/* Populate the linear mapping */
for_each_mem_range(i, &pa_start, &pa_end) {
@@ -329,5 +328,4 @@ void __init kasan_init(void)
/* At this point kasan is fully initialized. Enable error messages */
init_task.kasan_depth = 0;
- pr_info("KernelAddressSanitizer initialized.\n");
}
generated by cgit v1.2.3 (git 2.39.0) at 2025-10-07 05:56:43 +0300