aboutsummaryrefslogtreecommitdiff
path: root/arch
diff options
context:
space:
mode:
Diffstat (limited to 'arch')
-rw-r--r--arch/alpha/kernel/console.c1
-rw-r--r--arch/arm/boot/dts/aspeed-ast2500-evb.dts2
-rw-r--r--arch/arm/kernel/ftrace.c11
-rw-r--r--arch/arm/mach-omap2/clockdomains7xx_data.c2
-rw-r--r--arch/ia64/kernel/module.c4
-rw-r--r--arch/powerpc/include/asm/cputable.h3
-rw-r--r--arch/powerpc/kvm/book3s_64_mmu_host.c5
-rw-r--r--arch/powerpc/kvm/book3s_pr.c6
-rw-r--r--arch/x86/boot/compressed/kaslr.c11
-rw-r--r--arch/x86/kernel/i8259.c1
-rw-r--r--arch/x86/kernel/smp.c3
-rw-r--r--arch/x86/xen/smp.c49
12 files changed, 65 insertions, 33 deletions
diff --git a/arch/alpha/kernel/console.c b/arch/alpha/kernel/console.c
index 6a61deed4a85..ab228ed45945 100644
--- a/arch/alpha/kernel/console.c
+++ b/arch/alpha/kernel/console.c
@@ -20,6 +20,7 @@
struct pci_controller *pci_vga_hose;
static struct resource alpha_vga = {
.name = "alpha-vga+",
+ .flags = IORESOURCE_IO,
.start = 0x3C0,
.end = 0x3DF
};
diff --git a/arch/arm/boot/dts/aspeed-ast2500-evb.dts b/arch/arm/boot/dts/aspeed-ast2500-evb.dts
index 1b7a5ff0e533..d7774d35e466 100644
--- a/arch/arm/boot/dts/aspeed-ast2500-evb.dts
+++ b/arch/arm/boot/dts/aspeed-ast2500-evb.dts
@@ -15,7 +15,7 @@
bootargs = "console=ttyS4,115200 earlyprintk";
};
- memory {
+ memory@80000000 {
reg = <0x80000000 0x20000000>;
};
};
diff --git a/arch/arm/kernel/ftrace.c b/arch/arm/kernel/ftrace.c
index 3f1759411d51..414e60ed0257 100644
--- a/arch/arm/kernel/ftrace.c
+++ b/arch/arm/kernel/ftrace.c
@@ -29,11 +29,6 @@
#endif
#ifdef CONFIG_DYNAMIC_FTRACE
-#ifdef CONFIG_OLD_MCOUNT
-#define OLD_MCOUNT_ADDR ((unsigned long) mcount)
-#define OLD_FTRACE_ADDR ((unsigned long) ftrace_caller_old)
-
-#define OLD_NOP 0xe1a00000 /* mov r0, r0 */
static int __ftrace_modify_code(void *data)
{
@@ -51,6 +46,12 @@ void arch_ftrace_update_code(int command)
stop_machine(__ftrace_modify_code, &command, NULL);
}
+#ifdef CONFIG_OLD_MCOUNT
+#define OLD_MCOUNT_ADDR ((unsigned long) mcount)
+#define OLD_FTRACE_ADDR ((unsigned long) ftrace_caller_old)
+
+#define OLD_NOP 0xe1a00000 /* mov r0, r0 */
+
static unsigned long ftrace_nop_replace(struct dyn_ftrace *rec)
{
return rec->arch.old_mcount ? OLD_NOP : NOP;
diff --git a/arch/arm/mach-omap2/clockdomains7xx_data.c b/arch/arm/mach-omap2/clockdomains7xx_data.c
index ef9ed36e8a61..e3416b40e82b 100644
--- a/arch/arm/mach-omap2/clockdomains7xx_data.c
+++ b/arch/arm/mach-omap2/clockdomains7xx_data.c
@@ -524,7 +524,7 @@ static struct clockdomain pcie_7xx_clkdm = {
.dep_bit = DRA7XX_PCIE_STATDEP_SHIFT,
.wkdep_srcs = pcie_wkup_sleep_deps,
.sleepdep_srcs = pcie_wkup_sleep_deps,
- .flags = CLKDM_CAN_HWSUP_SWSUP,
+ .flags = CLKDM_CAN_SWSUP,
};
static struct clockdomain atl_7xx_clkdm = {
diff --git a/arch/ia64/kernel/module.c b/arch/ia64/kernel/module.c
index 6ab0ae7d6535..d1d945c6bd05 100644
--- a/arch/ia64/kernel/module.c
+++ b/arch/ia64/kernel/module.c
@@ -153,7 +153,7 @@ slot (const struct insn *insn)
static int
apply_imm64 (struct module *mod, struct insn *insn, uint64_t val)
{
- if (slot(insn) != 2) {
+ if (slot(insn) != 1 && slot(insn) != 2) {
printk(KERN_ERR "%s: invalid slot number %d for IMM64\n",
mod->name, slot(insn));
return 0;
@@ -165,7 +165,7 @@ apply_imm64 (struct module *mod, struct insn *insn, uint64_t val)
static int
apply_imm60 (struct module *mod, struct insn *insn, uint64_t val)
{
- if (slot(insn) != 2) {
+ if (slot(insn) != 1 && slot(insn) != 2) {
printk(KERN_ERR "%s: invalid slot number %d for IMM60\n",
mod->name, slot(insn));
return 0;
diff --git a/arch/powerpc/include/asm/cputable.h b/arch/powerpc/include/asm/cputable.h
index ab68d0ee7725..4e54282c29b4 100644
--- a/arch/powerpc/include/asm/cputable.h
+++ b/arch/powerpc/include/asm/cputable.h
@@ -474,7 +474,8 @@ enum {
CPU_FTR_ICSWX | CPU_FTR_CFAR | CPU_FTR_HVMODE | CPU_FTR_VMX_COPY | \
CPU_FTR_DBELL | CPU_FTR_HAS_PPR | CPU_FTR_DAWR | \
CPU_FTR_ARCH_207S | CPU_FTR_TM_COMP | CPU_FTR_ARCH_300)
-#define CPU_FTRS_POWER9_DD1 (CPU_FTRS_POWER9 | CPU_FTR_POWER9_DD1)
+#define CPU_FTRS_POWER9_DD1 ((CPU_FTRS_POWER9 | CPU_FTR_POWER9_DD1) & \
+ (~CPU_FTR_SAO))
#define CPU_FTRS_CELL (CPU_FTR_USE_TB | CPU_FTR_LWSYNC | \
CPU_FTR_PPCAS_ARCH_V2 | CPU_FTR_CTRL | \
CPU_FTR_ALTIVEC_COMP | CPU_FTR_MMCRA | CPU_FTR_SMT | \
diff --git a/arch/powerpc/kvm/book3s_64_mmu_host.c b/arch/powerpc/kvm/book3s_64_mmu_host.c
index a587e8f4fd26..4b4e927c4822 100644
--- a/arch/powerpc/kvm/book3s_64_mmu_host.c
+++ b/arch/powerpc/kvm/book3s_64_mmu_host.c
@@ -177,12 +177,15 @@ map_again:
ret = mmu_hash_ops.hpte_insert(hpteg, vpn, hpaddr, rflags, vflags,
hpsize, hpsize, MMU_SEGSIZE_256M);
- if (ret < 0) {
+ if (ret == -1) {
/* If we couldn't map a primary PTE, try a secondary */
hash = ~hash;
vflags ^= HPTE_V_SECONDARY;
attempt++;
goto map_again;
+ } else if (ret < 0) {
+ r = -EIO;
+ goto out_unlock;
} else {
trace_kvm_book3s_64_mmu_map(rflags, hpteg,
vpn, hpaddr, orig_pte);
diff --git a/arch/powerpc/kvm/book3s_pr.c b/arch/powerpc/kvm/book3s_pr.c
index 826c541a12af..e0d88d0890aa 100644
--- a/arch/powerpc/kvm/book3s_pr.c
+++ b/arch/powerpc/kvm/book3s_pr.c
@@ -627,7 +627,11 @@ int kvmppc_handle_pagefault(struct kvm_run *run, struct kvm_vcpu *vcpu,
kvmppc_mmu_unmap_page(vcpu, &pte);
}
/* The guest's PTE is not mapped yet. Map on the host */
- kvmppc_mmu_map_page(vcpu, &pte, iswrite);
+ if (kvmppc_mmu_map_page(vcpu, &pte, iswrite) == -EIO) {
+ /* Exit KVM if mapping failed */
+ run->exit_reason = KVM_EXIT_INTERNAL_ERROR;
+ return RESUME_HOST;
+ }
if (data)
vcpu->stat.sp_storage++;
else if (vcpu->arch.mmu.is_dcbz32(vcpu) &&
diff --git a/arch/x86/boot/compressed/kaslr.c b/arch/x86/boot/compressed/kaslr.c
index 6de58f1bd7ec..eb5ff66b4d7a 100644
--- a/arch/x86/boot/compressed/kaslr.c
+++ b/arch/x86/boot/compressed/kaslr.c
@@ -460,10 +460,17 @@ void choose_random_location(unsigned long input,
add_identity_map(random_addr, output_size);
*output = random_addr;
}
+
+ /*
+ * This loads the identity mapping page table.
+ * This should only be done if a new physical address
+ * is found for the kernel, otherwise we should keep
+ * the old page table to make it be like the "nokaslr"
+ * case.
+ */
+ finalize_identity_maps();
}
- /* This actually loads the identity pagetable on x86_64. */
- finalize_identity_maps();
/* Pick random virtual address starting from LOAD_PHYSICAL_ADDR. */
if (IS_ENABLED(CONFIG_X86_64))
diff --git a/arch/x86/kernel/i8259.c b/arch/x86/kernel/i8259.c
index be22f5a2192e..4e3b8a587c88 100644
--- a/arch/x86/kernel/i8259.c
+++ b/arch/x86/kernel/i8259.c
@@ -418,6 +418,7 @@ struct legacy_pic default_legacy_pic = {
};
struct legacy_pic *legacy_pic = &default_legacy_pic;
+EXPORT_SYMBOL(legacy_pic);
static int __init i8259A_init_ops(void)
{
diff --git a/arch/x86/kernel/smp.c b/arch/x86/kernel/smp.c
index ca699677e288..ea217caa731c 100644
--- a/arch/x86/kernel/smp.c
+++ b/arch/x86/kernel/smp.c
@@ -33,6 +33,7 @@
#include <asm/mce.h>
#include <asm/trace/irq_vectors.h>
#include <asm/kexec.h>
+#include <asm/virtext.h>
/*
* Some notes on x86 processor bugs affecting SMP operation:
@@ -162,6 +163,7 @@ static int smp_stop_nmi_callback(unsigned int val, struct pt_regs *regs)
if (raw_smp_processor_id() == atomic_read(&stopping_cpu))
return NMI_HANDLED;
+ cpu_emergency_vmxoff();
stop_this_cpu(NULL);
return NMI_HANDLED;
@@ -174,6 +176,7 @@ static int smp_stop_nmi_callback(unsigned int val, struct pt_regs *regs)
asmlinkage __visible void smp_reboot_interrupt(void)
{
ipi_entering_ack_irq();
+ cpu_emergency_vmxoff();
stop_this_cpu(NULL);
irq_exit();
}
diff --git a/arch/x86/xen/smp.c b/arch/x86/xen/smp.c
index 137afbbd0590..a11540e51f62 100644
--- a/arch/x86/xen/smp.c
+++ b/arch/x86/xen/smp.c
@@ -299,35 +299,46 @@ static void __init xen_filter_cpu_maps(void)
}
-static void __init xen_smp_prepare_boot_cpu(void)
+static void __init xen_pv_smp_prepare_boot_cpu(void)
{
BUG_ON(smp_processor_id() != 0);
native_smp_prepare_boot_cpu();
- if (xen_pv_domain()) {
- if (!xen_feature(XENFEAT_writable_page_tables))
- /* We've switched to the "real" per-cpu gdt, so make
- * sure the old memory can be recycled. */
- make_lowmem_page_readwrite(xen_initial_gdt);
+ if (!xen_feature(XENFEAT_writable_page_tables))
+ /* We've switched to the "real" per-cpu gdt, so make
+ * sure the old memory can be recycled. */
+ make_lowmem_page_readwrite(xen_initial_gdt);
#ifdef CONFIG_X86_32
- /*
- * Xen starts us with XEN_FLAT_RING1_DS, but linux code
- * expects __USER_DS
- */
- loadsegment(ds, __USER_DS);
- loadsegment(es, __USER_DS);
+ /*
+ * Xen starts us with XEN_FLAT_RING1_DS, but linux code
+ * expects __USER_DS
+ */
+ loadsegment(ds, __USER_DS);
+ loadsegment(es, __USER_DS);
#endif
- xen_filter_cpu_maps();
- xen_setup_vcpu_info_placement();
- }
+ xen_filter_cpu_maps();
+ xen_setup_vcpu_info_placement();
+
+ /*
+ * The alternative logic (which patches the unlock/lock) runs before
+ * the smp bootup up code is activated. Hence we need to set this up
+ * the core kernel is being patched. Otherwise we will have only
+ * modules patched but not core code.
+ */
+ xen_init_spinlocks();
+}
+
+static void __init xen_hvm_smp_prepare_boot_cpu(void)
+{
+ BUG_ON(smp_processor_id() != 0);
+ native_smp_prepare_boot_cpu();
/*
* Setup vcpu_info for boot CPU.
*/
- if (xen_hvm_domain())
- xen_vcpu_setup(0);
+ xen_vcpu_setup(0);
/*
* The alternative logic (which patches the unlock/lock) runs before
@@ -733,7 +744,7 @@ static irqreturn_t xen_irq_work_interrupt(int irq, void *dev_id)
}
static const struct smp_ops xen_smp_ops __initconst = {
- .smp_prepare_boot_cpu = xen_smp_prepare_boot_cpu,
+ .smp_prepare_boot_cpu = xen_pv_smp_prepare_boot_cpu,
.smp_prepare_cpus = xen_smp_prepare_cpus,
.smp_cpus_done = xen_smp_cpus_done,
@@ -772,5 +783,5 @@ void __init xen_hvm_smp_init(void)
smp_ops.cpu_die = xen_cpu_die;
smp_ops.send_call_func_ipi = xen_smp_send_call_function_ipi;
smp_ops.send_call_func_single_ipi = xen_smp_send_call_function_single_ipi;
- smp_ops.smp_prepare_boot_cpu = xen_smp_prepare_boot_cpu;
+ smp_ops.smp_prepare_boot_cpu = xen_hvm_smp_prepare_boot_cpu;
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-27 13:46:24 +0000