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-rw-r--r--arch/arm64/kernel/cpu_errata.c4
-rw-r--r--arch/arm64/mm/mmu.c8
-rw-r--r--arch/mips/ath25/board.c2
-rw-r--r--arch/mips/cavium-octeon/octeon-irq.c2
-rw-r--r--arch/mips/kernel/smp-bmips.c8
-rw-r--r--arch/mips/loongson64/Kconfig6
-rw-r--r--arch/powerpc/boot/Makefile3
-rw-r--r--arch/powerpc/kernel/prom_init.c1
-rw-r--r--arch/powerpc/kvm/book3s_64_mmu_radix.c69
-rw-r--r--arch/powerpc/kvm/book3s_hv.c17
-rw-r--r--arch/powerpc/kvm/powerpc.c4
-rw-r--r--arch/s390/kvm/kvm-s390.c2
-rw-r--r--arch/x86/events/intel/uncore_snbep.c2
13 files changed, 80 insertions, 48 deletions
diff --git a/arch/arm64/kernel/cpu_errata.c b/arch/arm64/kernel/cpu_errata.c
index 52f15cd896e1..b5a28336c077 100644
--- a/arch/arm64/kernel/cpu_errata.c
+++ b/arch/arm64/kernel/cpu_errata.c
@@ -178,7 +178,7 @@ static int enable_smccc_arch_workaround_1(void *data)
case PSCI_CONDUIT_HVC:
arm_smccc_1_1_hvc(ARM_SMCCC_ARCH_FEATURES_FUNC_ID,
ARM_SMCCC_ARCH_WORKAROUND_1, &res);
- if (res.a0)
+ if ((int)res.a0 < 0)
return 0;
cb = call_hvc_arch_workaround_1;
smccc_start = __smccc_workaround_1_hvc_start;
@@ -188,7 +188,7 @@ static int enable_smccc_arch_workaround_1(void *data)
case PSCI_CONDUIT_SMC:
arm_smccc_1_1_smc(ARM_SMCCC_ARCH_FEATURES_FUNC_ID,
ARM_SMCCC_ARCH_WORKAROUND_1, &res);
- if (res.a0)
+ if ((int)res.a0 < 0)
return 0;
cb = call_smc_arch_workaround_1;
smccc_start = __smccc_workaround_1_smc_start;
diff --git a/arch/arm64/mm/mmu.c b/arch/arm64/mm/mmu.c
index 84a019f55022..8c704f1e53c2 100644
--- a/arch/arm64/mm/mmu.c
+++ b/arch/arm64/mm/mmu.c
@@ -108,7 +108,7 @@ static bool pgattr_change_is_safe(u64 old, u64 new)
* The following mapping attributes may be updated in live
* kernel mappings without the need for break-before-make.
*/
- static const pteval_t mask = PTE_PXN | PTE_RDONLY | PTE_WRITE;
+ static const pteval_t mask = PTE_PXN | PTE_RDONLY | PTE_WRITE | PTE_NG;
/* creating or taking down mappings is always safe */
if (old == 0 || new == 0)
@@ -118,9 +118,9 @@ static bool pgattr_change_is_safe(u64 old, u64 new)
if ((old | new) & PTE_CONT)
return false;
- /* Transitioning from Global to Non-Global is safe */
- if (((old ^ new) == PTE_NG) && (new & PTE_NG))
- return true;
+ /* Transitioning from Non-Global to Global is unsafe */
+ if (old & ~new & PTE_NG)
+ return false;
return ((old ^ new) & ~mask) == 0;
}
diff --git a/arch/mips/ath25/board.c b/arch/mips/ath25/board.c
index 9ab48ff80c1c..6d11ae581ea7 100644
--- a/arch/mips/ath25/board.c
+++ b/arch/mips/ath25/board.c
@@ -135,6 +135,8 @@ int __init ath25_find_config(phys_addr_t base, unsigned long size)
}
board_data = kzalloc(BOARD_CONFIG_BUFSZ, GFP_KERNEL);
+ if (!board_data)
+ goto error;
ath25_board.config = (struct ath25_boarddata *)board_data;
memcpy_fromio(board_data, bcfg, 0x100);
if (broken_boarddata) {
diff --git a/arch/mips/cavium-octeon/octeon-irq.c b/arch/mips/cavium-octeon/octeon-irq.c
index 5b3a3f6a9ad3..d99f5242169e 100644
--- a/arch/mips/cavium-octeon/octeon-irq.c
+++ b/arch/mips/cavium-octeon/octeon-irq.c
@@ -2277,6 +2277,8 @@ static int __init octeon_irq_init_cib(struct device_node *ciu_node,
}
host_data = kzalloc(sizeof(*host_data), GFP_KERNEL);
+ if (!host_data)
+ return -ENOMEM;
raw_spin_lock_init(&host_data->lock);
addr = of_get_address(ciu_node, 0, NULL, NULL);
diff --git a/arch/mips/kernel/smp-bmips.c b/arch/mips/kernel/smp-bmips.c
index 9d41732a9146..159e83add4bb 100644
--- a/arch/mips/kernel/smp-bmips.c
+++ b/arch/mips/kernel/smp-bmips.c
@@ -168,11 +168,11 @@ static void bmips_prepare_cpus(unsigned int max_cpus)
return;
}
- if (request_irq(IPI0_IRQ, bmips_ipi_interrupt, IRQF_PERCPU,
- "smp_ipi0", NULL))
+ if (request_irq(IPI0_IRQ, bmips_ipi_interrupt,
+ IRQF_PERCPU | IRQF_NO_SUSPEND, "smp_ipi0", NULL))
panic("Can't request IPI0 interrupt");
- if (request_irq(IPI1_IRQ, bmips_ipi_interrupt, IRQF_PERCPU,
- "smp_ipi1", NULL))
+ if (request_irq(IPI1_IRQ, bmips_ipi_interrupt,
+ IRQF_PERCPU | IRQF_NO_SUSPEND, "smp_ipi1", NULL))
panic("Can't request IPI1 interrupt");
}
diff --git a/arch/mips/loongson64/Kconfig b/arch/mips/loongson64/Kconfig
index bc2fdbfa8223..72af0c183969 100644
--- a/arch/mips/loongson64/Kconfig
+++ b/arch/mips/loongson64/Kconfig
@@ -7,6 +7,8 @@ choice
config LEMOTE_FULOONG2E
bool "Lemote Fuloong(2e) mini-PC"
select ARCH_SPARSEMEM_ENABLE
+ select ARCH_MIGHT_HAVE_PC_PARPORT
+ select ARCH_MIGHT_HAVE_PC_SERIO
select CEVT_R4K
select CSRC_R4K
select SYS_HAS_CPU_LOONGSON2E
@@ -33,6 +35,8 @@ config LEMOTE_FULOONG2E
config LEMOTE_MACH2F
bool "Lemote Loongson 2F family machines"
select ARCH_SPARSEMEM_ENABLE
+ select ARCH_MIGHT_HAVE_PC_PARPORT
+ select ARCH_MIGHT_HAVE_PC_SERIO
select BOARD_SCACHE
select BOOT_ELF32
select CEVT_R4K if ! MIPS_EXTERNAL_TIMER
@@ -62,6 +66,8 @@ config LEMOTE_MACH2F
config LOONGSON_MACH3X
bool "Generic Loongson 3 family machines"
select ARCH_SPARSEMEM_ENABLE
+ select ARCH_MIGHT_HAVE_PC_PARPORT
+ select ARCH_MIGHT_HAVE_PC_SERIO
select GENERIC_ISA_DMA_SUPPORT_BROKEN
select BOOT_ELF32
select BOARD_SCACHE
diff --git a/arch/powerpc/boot/Makefile b/arch/powerpc/boot/Makefile
index ef6549e57157..26d5d2a5b8e9 100644
--- a/arch/powerpc/boot/Makefile
+++ b/arch/powerpc/boot/Makefile
@@ -101,7 +101,8 @@ $(addprefix $(obj)/,$(zlib-y)): \
libfdt := fdt.c fdt_ro.c fdt_wip.c fdt_sw.c fdt_rw.c fdt_strerror.c
libfdtheader := fdt.h libfdt.h libfdt_internal.h
-$(addprefix $(obj)/,$(libfdt) libfdt-wrapper.o simpleboot.o epapr.o opal.o): \
+$(addprefix $(obj)/,$(libfdt) libfdt-wrapper.o simpleboot.o epapr.o opal.o \
+ treeboot-akebono.o treeboot-currituck.o treeboot-iss4xx.o): \
$(addprefix $(obj)/,$(libfdtheader))
src-wlib-y := string.S crt0.S stdio.c decompress.c main.c \
diff --git a/arch/powerpc/kernel/prom_init.c b/arch/powerpc/kernel/prom_init.c
index d22c41c26bb3..acf4b2e0530c 100644
--- a/arch/powerpc/kernel/prom_init.c
+++ b/arch/powerpc/kernel/prom_init.c
@@ -874,7 +874,6 @@ struct ibm_arch_vec __cacheline_aligned ibm_architecture_vec = {
.mmu = 0,
.hash_ext = 0,
.radix_ext = 0,
- .byte22 = 0,
},
/* option vector 6: IBM PAPR hints */
diff --git a/arch/powerpc/kvm/book3s_64_mmu_radix.c b/arch/powerpc/kvm/book3s_64_mmu_radix.c
index 0c854816e653..5cb4e4687107 100644
--- a/arch/powerpc/kvm/book3s_64_mmu_radix.c
+++ b/arch/powerpc/kvm/book3s_64_mmu_radix.c
@@ -195,6 +195,12 @@ static void kvmppc_pte_free(pte_t *ptep)
kmem_cache_free(kvm_pte_cache, ptep);
}
+/* Like pmd_huge() and pmd_large(), but works regardless of config options */
+static inline int pmd_is_leaf(pmd_t pmd)
+{
+ return !!(pmd_val(pmd) & _PAGE_PTE);
+}
+
static int kvmppc_create_pte(struct kvm *kvm, pte_t pte, unsigned long gpa,
unsigned int level, unsigned long mmu_seq)
{
@@ -219,7 +225,7 @@ static int kvmppc_create_pte(struct kvm *kvm, pte_t pte, unsigned long gpa,
else
new_pmd = pmd_alloc_one(kvm->mm, gpa);
- if (level == 0 && !(pmd && pmd_present(*pmd)))
+ if (level == 0 && !(pmd && pmd_present(*pmd) && !pmd_is_leaf(*pmd)))
new_ptep = kvmppc_pte_alloc();
/* Check if we might have been invalidated; let the guest retry if so */
@@ -244,12 +250,30 @@ static int kvmppc_create_pte(struct kvm *kvm, pte_t pte, unsigned long gpa,
new_pmd = NULL;
}
pmd = pmd_offset(pud, gpa);
- if (pmd_large(*pmd)) {
- /* Someone else has instantiated a large page here; retry */
- ret = -EAGAIN;
- goto out_unlock;
- }
- if (level == 1 && !pmd_none(*pmd)) {
+ if (pmd_is_leaf(*pmd)) {
+ unsigned long lgpa = gpa & PMD_MASK;
+
+ /*
+ * If we raced with another CPU which has just put
+ * a 2MB pte in after we saw a pte page, try again.
+ */
+ if (level == 0 && !new_ptep) {
+ ret = -EAGAIN;
+ goto out_unlock;
+ }
+ /* Valid 2MB page here already, remove it */
+ old = kvmppc_radix_update_pte(kvm, pmdp_ptep(pmd),
+ ~0UL, 0, lgpa, PMD_SHIFT);
+ kvmppc_radix_tlbie_page(kvm, lgpa, PMD_SHIFT);
+ if (old & _PAGE_DIRTY) {
+ unsigned long gfn = lgpa >> PAGE_SHIFT;
+ struct kvm_memory_slot *memslot;
+ memslot = gfn_to_memslot(kvm, gfn);
+ if (memslot && memslot->dirty_bitmap)
+ kvmppc_update_dirty_map(memslot,
+ gfn, PMD_SIZE);
+ }
+ } else if (level == 1 && !pmd_none(*pmd)) {
/*
* There's a page table page here, but we wanted
* to install a large page. Tell the caller and let
@@ -412,28 +436,24 @@ int kvmppc_book3s_radix_page_fault(struct kvm_run *run, struct kvm_vcpu *vcpu,
} else {
page = pages[0];
pfn = page_to_pfn(page);
- if (PageHuge(page)) {
- page = compound_head(page);
- pte_size <<= compound_order(page);
+ if (PageCompound(page)) {
+ pte_size <<= compound_order(compound_head(page));
/* See if we can insert a 2MB large-page PTE here */
if (pte_size >= PMD_SIZE &&
- (gpa & PMD_MASK & PAGE_MASK) ==
- (hva & PMD_MASK & PAGE_MASK)) {
+ (gpa & (PMD_SIZE - PAGE_SIZE)) ==
+ (hva & (PMD_SIZE - PAGE_SIZE))) {
level = 1;
pfn &= ~((PMD_SIZE >> PAGE_SHIFT) - 1);
}
}
/* See if we can provide write access */
if (writing) {
- /*
- * We assume gup_fast has set dirty on the host PTE.
- */
pgflags |= _PAGE_WRITE;
} else {
local_irq_save(flags);
ptep = find_current_mm_pte(current->mm->pgd,
hva, NULL, NULL);
- if (ptep && pte_write(*ptep) && pte_dirty(*ptep))
+ if (ptep && pte_write(*ptep))
pgflags |= _PAGE_WRITE;
local_irq_restore(flags);
}
@@ -459,18 +479,15 @@ int kvmppc_book3s_radix_page_fault(struct kvm_run *run, struct kvm_vcpu *vcpu,
pte = pfn_pte(pfn, __pgprot(pgflags));
ret = kvmppc_create_pte(kvm, pte, gpa, level, mmu_seq);
}
- if (ret == 0 || ret == -EAGAIN)
- ret = RESUME_GUEST;
if (page) {
- /*
- * We drop pages[0] here, not page because page might
- * have been set to the head page of a compound, but
- * we have to drop the reference on the correct tail
- * page to match the get inside gup()
- */
- put_page(pages[0]);
+ if (!ret && (pgflags & _PAGE_WRITE))
+ set_page_dirty_lock(page);
+ put_page(page);
}
+
+ if (ret == 0 || ret == -EAGAIN)
+ ret = RESUME_GUEST;
return ret;
}
@@ -644,7 +661,7 @@ void kvmppc_free_radix(struct kvm *kvm)
continue;
pmd = pmd_offset(pud, 0);
for (im = 0; im < PTRS_PER_PMD; ++im, ++pmd) {
- if (pmd_huge(*pmd)) {
+ if (pmd_is_leaf(*pmd)) {
pmd_clear(pmd);
continue;
}
diff --git a/arch/powerpc/kvm/book3s_hv.c b/arch/powerpc/kvm/book3s_hv.c
index 89707354c2ef..9cb9448163c4 100644
--- a/arch/powerpc/kvm/book3s_hv.c
+++ b/arch/powerpc/kvm/book3s_hv.c
@@ -2885,7 +2885,7 @@ static noinline void kvmppc_run_core(struct kvmppc_vcore *vc)
*/
trace_hardirqs_on();
- guest_enter();
+ guest_enter_irqoff();
srcu_idx = srcu_read_lock(&vc->kvm->srcu);
@@ -2893,8 +2893,6 @@ static noinline void kvmppc_run_core(struct kvmppc_vcore *vc)
srcu_read_unlock(&vc->kvm->srcu, srcu_idx);
- guest_exit();
-
trace_hardirqs_off();
set_irq_happened(trap);
@@ -2937,6 +2935,7 @@ static noinline void kvmppc_run_core(struct kvmppc_vcore *vc)
kvmppc_set_host_core(pcpu);
local_irq_enable();
+ guest_exit();
/* Let secondaries go back to the offline loop */
for (i = 0; i < controlled_threads; ++i) {
@@ -3656,15 +3655,17 @@ static int kvmppc_hv_setup_htab_rma(struct kvm_vcpu *vcpu)
goto up_out;
psize = vma_kernel_pagesize(vma);
- porder = __ilog2(psize);
up_read(&current->mm->mmap_sem);
/* We can handle 4k, 64k or 16M pages in the VRMA */
- err = -EINVAL;
- if (!(psize == 0x1000 || psize == 0x10000 ||
- psize == 0x1000000))
- goto out_srcu;
+ if (psize >= 0x1000000)
+ psize = 0x1000000;
+ else if (psize >= 0x10000)
+ psize = 0x10000;
+ else
+ psize = 0x1000;
+ porder = __ilog2(psize);
senc = slb_pgsize_encoding(psize);
kvm->arch.vrma_slb_v = senc | SLB_VSID_B_1T |
diff --git a/arch/powerpc/kvm/powerpc.c b/arch/powerpc/kvm/powerpc.c
index 403e642c78f5..52c205373986 100644
--- a/arch/powerpc/kvm/powerpc.c
+++ b/arch/powerpc/kvm/powerpc.c
@@ -1345,7 +1345,7 @@ static int kvmppc_emulate_mmio_vsx_loadstore(struct kvm_vcpu *vcpu,
int kvmppc_handle_load128_by2x64(struct kvm_run *run, struct kvm_vcpu *vcpu,
unsigned int rt, int is_default_endian)
{
- enum emulation_result emulated;
+ enum emulation_result emulated = EMULATE_DONE;
while (vcpu->arch.mmio_vmx_copy_nums) {
emulated = __kvmppc_handle_load(run, vcpu, rt, 8,
@@ -1608,7 +1608,9 @@ int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *run)
kvm_sigset_deactivate(vcpu);
+#ifdef CONFIG_ALTIVEC
out:
+#endif
vcpu_put(vcpu);
return r;
}
diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c
index 77d7818130db..339ac0964590 100644
--- a/arch/s390/kvm/kvm-s390.c
+++ b/arch/s390/kvm/kvm-s390.c
@@ -86,6 +86,7 @@ struct kvm_stats_debugfs_item debugfs_entries[] = {
{ "deliver_prefix_signal", VCPU_STAT(deliver_prefix_signal) },
{ "deliver_restart_signal", VCPU_STAT(deliver_restart_signal) },
{ "deliver_program_interruption", VCPU_STAT(deliver_program_int) },
+ { "deliver_io_interrupt", VCPU_STAT(deliver_io_int) },
{ "exit_wait_state", VCPU_STAT(exit_wait_state) },
{ "instruction_epsw", VCPU_STAT(instruction_epsw) },
{ "instruction_gs", VCPU_STAT(instruction_gs) },
@@ -2146,6 +2147,7 @@ static void sca_add_vcpu(struct kvm_vcpu *vcpu)
/* we still need the basic sca for the ipte control */
vcpu->arch.sie_block->scaoh = (__u32)(((__u64)sca) >> 32);
vcpu->arch.sie_block->scaol = (__u32)(__u64)sca;
+ return;
}
read_lock(&vcpu->kvm->arch.sca_lock);
if (vcpu->kvm->arch.use_esca) {
diff --git a/arch/x86/events/intel/uncore_snbep.c b/arch/x86/events/intel/uncore_snbep.c
index 6d8044ab1060..22ec65bc033a 100644
--- a/arch/x86/events/intel/uncore_snbep.c
+++ b/arch/x86/events/intel/uncore_snbep.c
@@ -3606,7 +3606,7 @@ static struct intel_uncore_type skx_uncore_imc = {
};
static struct attribute *skx_upi_uncore_formats_attr[] = {
- &format_attr_event_ext.attr,
+ &format_attr_event.attr,
&format_attr_umask_ext.attr,
&format_attr_edge.attr,
&format_attr_inv.attr,
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.