select GENERIC_STRNLEN_USER
select HAVE_CONTEXT_TRACKING if X86_64
select HAVE_IRQ_TIME_ACCOUNTING
- select HAVE_VIRT_TO_BUS
+ select VIRT_TO_BUS
select MODULES_USE_ELF_REL if X86_32
select MODULES_USE_ELF_RELA if X86_64
select CLONE_BACKWARDS if X86_32
select OLD_SIGSUSPEND3 if X86_32 || IA32_EMULATION
select OLD_SIGACTION if X86_32
select COMPAT_OLD_SIGACTION if IA32_EMULATION
+ select RTC_LIB
config INSTRUCTION_DECODER
def_bool y
config ARCH_HAS_CPU_RELAX
def_bool y
-config ARCH_HAS_DEFAULT_IDLE
- def_bool y
-
config ARCH_HAS_CACHE_LINE_SIZE
def_bool y
config X86_VSMP
bool "ScaleMP vSMP"
- select PARAVIRT_GUEST
+ select HYPERVISOR_GUEST
select PARAVIRT
depends on X86_64 && PCI
depends on X86_EXTENDED_PLATFORM
If in doubt, say "Y".
- menuconfig PARAVIRT_GUEST
- bool "Paravirtualized guest support"
+ menuconfig HYPERVISOR_GUEST
+ bool "Linux guest support"
---help---
- Say Y here to get to see options related to running Linux under
- various hypervisors. This option alone does not add any kernel code.
+ Say Y here to enable options for running Linux under various hyper-
+ visors. This option enables basic hypervisor detection and platform
+ setup.
- If you say N, all options in this submenu will be skipped and disabled.
+ If you say N, all options in this submenu will be skipped and
+ disabled, and Linux guest support won't be built in.
- if PARAVIRT_GUEST
-
- config PARAVIRT_TIME_ACCOUNTING
- bool "Paravirtual steal time accounting"
- select PARAVIRT
- default n
- ---help---
- Select this option to enable fine granularity task steal time
- accounting. Time spent executing other tasks in parallel with
- the current vCPU is discounted from the vCPU power. To account for
- that, there can be a small performance impact.
-
- If in doubt, say N here.
-
- source "arch/x86/xen/Kconfig"
-
- config KVM_GUEST
- bool "KVM Guest support (including kvmclock)"
- select PARAVIRT
- select PARAVIRT
- select PARAVIRT_CLOCK
- default y if PARAVIRT_GUEST
- ---help---
- This option enables various optimizations for running under the KVM
- hypervisor. It includes a paravirtualized clock, so that instead
- of relying on a PIT (or probably other) emulation by the
- underlying device model, the host provides the guest with
- timing infrastructure such as time of day, and system time
-
- source "arch/x86/lguest/Kconfig"
+ if HYPERVISOR_GUEST
config PARAVIRT
bool "Enable paravirtualization code"
over full virtualization. However, when run without a hypervisor
the kernel is theoretically slower and slightly larger.
+ config PARAVIRT_DEBUG
+ bool "paravirt-ops debugging"
+ depends on PARAVIRT && DEBUG_KERNEL
+ ---help---
+ Enable to debug paravirt_ops internals. Specifically, BUG if
+ a paravirt_op is missing when it is called.
+
config PARAVIRT_SPINLOCKS
bool "Paravirtualization layer for spinlocks"
depends on PARAVIRT && SMP
If you are unsure how to answer this question, answer N.
- config PARAVIRT_CLOCK
- bool
+ source "arch/x86/xen/Kconfig"
- endif
+ config KVM_GUEST
+ bool "KVM Guest support (including kvmclock)"
+ depends on PARAVIRT
+ select PARAVIRT_CLOCK
+ default y
+ ---help---
+ This option enables various optimizations for running under the KVM
+ hypervisor. It includes a paravirtualized clock, so that instead
+ of relying on a PIT (or probably other) emulation by the
+ underlying device model, the host provides the guest with
+ timing infrastructure such as time of day, and system time
- config PARAVIRT_DEBUG
- bool "paravirt-ops debugging"
- depends on PARAVIRT && DEBUG_KERNEL
+ source "arch/x86/lguest/Kconfig"
+
+ config PARAVIRT_TIME_ACCOUNTING
+ bool "Paravirtual steal time accounting"
+ depends on PARAVIRT
+ default n
---help---
- Enable to debug paravirt_ops internals. Specifically, BUG if
- a paravirt_op is missing when it is called.
+ Select this option to enable fine granularity task steal time
+ accounting. Time spent executing other tasks in parallel with
+ the current vCPU is discounted from the vCPU power. To account for
+ that, there can be a small performance impact.
+
+ If in doubt, say N here.
+
+ config PARAVIRT_CLOCK
+ bool
+
+ endif #HYPERVISOR_GUEST
config NO_BOOTMEM
def_bool y
config EFI
bool "EFI runtime service support"
depends on ACPI
+ select UCS2_STRING
---help---
This enables the kernel to use EFI runtime services that are
available (such as the EFI variable services).
{
PVOP_VCALL2(pv_cpu_ops.set_ldt, addr, entries);
}
- static inline void store_gdt(struct desc_ptr *dtr)
- {
- PVOP_VCALL1(pv_cpu_ops.store_gdt, dtr);
- }
static inline void store_idt(struct desc_ptr *dtr)
{
PVOP_VCALL1(pv_cpu_ops.store_idt, dtr);
PVOP_VCALL0(pv_mmu_ops.lazy_mode.leave);
}
-void arch_flush_lazy_mmu_mode(void);
+static inline void arch_flush_lazy_mmu_mode(void)
+{
+ PVOP_VCALL0(pv_mmu_ops.lazy_mode.flush);
+}
static inline void __set_fixmap(unsigned /* enum fixed_addresses */ idx,
phys_addr_t phys, pgprot_t flags)
/* Set deferred update mode, used for batching operations. */
void (*enter)(void);
void (*leave)(void);
+ void (*flush)(void);
};
struct pv_time_ops {
void (*load_tr_desc)(void);
void (*load_gdt)(const struct desc_ptr *);
void (*load_idt)(const struct desc_ptr *);
- void (*store_gdt)(struct desc_ptr *);
+ /* store_gdt has been removed. */
void (*store_idt)(struct desc_ptr *);
void (*set_ldt)(const void *desc, unsigned entries);
unsigned long (*store_tr)(void);
void paravirt_enter_lazy_mmu(void);
void paravirt_leave_lazy_mmu(void);
+void paravirt_flush_lazy_mmu(void);
void _paravirt_nop(void);
u32 _paravirt_ident_32(u32);
- .section .text..page_aligned
+ .text
#include <linux/linkage.h>
#include <asm/segment.h>
#include <asm/page_types.h>
movw %ax, %gs
# reload the gdt, as we need the full 32 bit address
- lgdt saved_gdt
lidt saved_idt
lldt saved_ldt
ljmp $(__KERNEL_CS), $1f
save_registers:
- sgdt saved_gdt
sidt saved_idt
sldt saved_ldt
str saved_tss
ENTRY(saved_eip) .long 0
# saved registers
- saved_gdt: .long 0,0
saved_idt: .long 0,0
saved_ldt: .long 0
saved_tss: .long 0
obj-y := intel_cacheinfo.o scattered.o topology.o
obj-y += proc.o capflags.o powerflags.o common.o
- obj-y += vmware.o hypervisor.o mshyperv.o
obj-y += rdrand.o
obj-y += match.o
obj-$(CONFIG_PERF_EVENTS) += perf_event.o
ifdef CONFIG_PERF_EVENTS
-obj-$(CONFIG_CPU_SUP_AMD) += perf_event_amd.o
+obj-$(CONFIG_CPU_SUP_AMD) += perf_event_amd.o perf_event_amd_uncore.o
obj-$(CONFIG_CPU_SUP_INTEL) += perf_event_p6.o perf_event_knc.o perf_event_p4.o
obj-$(CONFIG_CPU_SUP_INTEL) += perf_event_intel_lbr.o perf_event_intel_ds.o perf_event_intel.o
obj-$(CONFIG_CPU_SUP_INTEL) += perf_event_intel_uncore.o
obj-$(CONFIG_X86_LOCAL_APIC) += perfctr-watchdog.o perf_event_amd_ibs.o
+ obj-$(CONFIG_HYPERVISOR_GUEST) += vmware.o hypervisor.o mshyperv.o
+
quiet_cmd_mkcapflags = MKCAP $@
- cmd_mkcapflags = $(PERL) $(srctree)/$(src)/mkcapflags.pl $< $@
+ cmd_mkcapflags = $(CONFIG_SHELL) $(srctree)/$(src)/mkcapflags.sh $< $@
cpufeature = $(src)/../../include/asm/cpufeature.h
targets += capflags.c
-$(obj)/capflags.c: $(cpufeature) $(src)/mkcapflags.pl FORCE
+$(obj)/capflags.c: $(cpufeature) $(src)/mkcapflags.sh FORCE
$(call if_changed,mkcapflags)
leave_lazy(PARAVIRT_LAZY_MMU);
}
+void paravirt_flush_lazy_mmu(void)
+{
+ preempt_disable();
+
+ if (paravirt_get_lazy_mode() == PARAVIRT_LAZY_MMU) {
+ arch_leave_lazy_mmu_mode();
+ arch_enter_lazy_mmu_mode();
+ }
+
+ preempt_enable();
+}
+
void paravirt_start_context_switch(struct task_struct *prev)
{
BUG_ON(preemptible());
return this_cpu_read(paravirt_lazy_mode);
}
-void arch_flush_lazy_mmu_mode(void)
-{
- preempt_disable();
-
- if (paravirt_get_lazy_mode() == PARAVIRT_LAZY_MMU) {
- arch_leave_lazy_mmu_mode();
- arch_enter_lazy_mmu_mode();
- }
-
- preempt_enable();
-}
-
struct pv_info pv_info = {
.name = "bare hardware",
.paravirt_enabled = 0,
.set_ldt = native_set_ldt,
.load_gdt = native_load_gdt,
.load_idt = native_load_idt,
- .store_gdt = native_store_gdt,
.store_idt = native_store_idt,
.store_tr = native_store_tr,
.load_tls = native_load_tls,
.lazy_mode = {
.enter = paravirt_nop,
.leave = paravirt_nop,
+ .flush = paravirt_nop,
},
.set_fixmap = native_set_fixmap,
#include <linux/suspend.h>
#include <linux/export.h>
#include <linux/smp.h>
+#include <linux/perf_event.h>
#include <asm/pgtable.h>
#include <asm/proto.h>
* descriptor tables
*/
#ifdef CONFIG_X86_32
- store_gdt(&ctxt->gdt);
store_idt(&ctxt->idt);
#else
/* CONFIG_X86_64 */
- store_gdt((struct desc_ptr *)&ctxt->gdt_limit);
store_idt((struct desc_ptr *)&ctxt->idt_limit);
#endif
store_tr(ctxt->tr);
{
int cpu = smp_processor_id();
struct tss_struct *t = &per_cpu(init_tss, cpu);
-
+ #ifdef CONFIG_X86_64
+ struct desc_struct *desc = get_cpu_gdt_table(cpu);
+ tss_desc tss;
+ #endif
set_tss_desc(cpu, t); /*
* This just modifies memory; should not be
* necessary. But... This is necessary, because
*/
#ifdef CONFIG_X86_64
- get_cpu_gdt_table(cpu)[GDT_ENTRY_TSS].type = 9;
+ memcpy(&tss, &desc[GDT_ENTRY_TSS], sizeof(tss_desc));
+ tss.type = 0x9; /* The available 64-bit TSS (see AMD vol 2, pg 91 */
+ write_gdt_entry(desc, GDT_ENTRY_TSS, &tss, DESC_TSS);
syscall_init(); /* This sets MSR_*STAR and related */
#endif
* ltr is done i fix_processor_context().
*/
#ifdef CONFIG_X86_32
- load_gdt(&ctxt->gdt);
load_idt(&ctxt->idt);
#else
/* CONFIG_X86_64 */
- load_gdt((const struct desc_ptr *)&ctxt->gdt_limit);
load_idt((const struct desc_ptr *)&ctxt->idt_limit);
#endif
do_fpu_end();
x86_platform.restore_sched_clock_state();
mtrr_bp_restore();
+ perf_restore_debug_store();
}
/* Needed by apm.c */
#include <linux/pci.h>
#include <linux/gfp.h>
#include <linux/memblock.h>
+#include <linux/edd.h>
#include <xen/xen.h>
#include <xen/events.h>
.alloc_ldt = xen_alloc_ldt,
.free_ldt = xen_free_ldt,
- .store_gdt = native_store_gdt,
.store_idt = native_store_idt,
.store_tr = xen_store_tr,
.emergency_restart = xen_emergency_restart,
};
+static void __init xen_boot_params_init_edd(void)
+{
+#if IS_ENABLED(CONFIG_EDD)
+ struct xen_platform_op op;
+ struct edd_info *edd_info;
+ u32 *mbr_signature;
+ unsigned nr;
+ int ret;
+
+ edd_info = boot_params.eddbuf;
+ mbr_signature = boot_params.edd_mbr_sig_buffer;
+
+ op.cmd = XENPF_firmware_info;
+
+ op.u.firmware_info.type = XEN_FW_DISK_INFO;
+ for (nr = 0; nr < EDDMAXNR; nr++) {
+ struct edd_info *info = edd_info + nr;
+
+ op.u.firmware_info.index = nr;
+ info->params.length = sizeof(info->params);
+ set_xen_guest_handle(op.u.firmware_info.u.disk_info.edd_params,
+ &info->params);
+ ret = HYPERVISOR_dom0_op(&op);
+ if (ret)
+ break;
+
+#define C(x) info->x = op.u.firmware_info.u.disk_info.x
+ C(device);
+ C(version);
+ C(interface_support);
+ C(legacy_max_cylinder);
+ C(legacy_max_head);
+ C(legacy_sectors_per_track);
+#undef C
+ }
+ boot_params.eddbuf_entries = nr;
+
+ op.u.firmware_info.type = XEN_FW_DISK_MBR_SIGNATURE;
+ for (nr = 0; nr < EDD_MBR_SIG_MAX; nr++) {
+ op.u.firmware_info.index = nr;
+ ret = HYPERVISOR_dom0_op(&op);
+ if (ret)
+ break;
+ mbr_signature[nr] = op.u.firmware_info.u.disk_mbr_signature.mbr_signature;
+ }
+ boot_params.edd_mbr_sig_buf_entries = nr;
+#endif
+}
+
/*
* Set up the GDT and segment registers for -fstack-protector. Until
* we do this, we have to be careful not to call any stack-protected
/* Avoid searching for BIOS MP tables */
x86_init.mpparse.find_smp_config = x86_init_noop;
x86_init.mpparse.get_smp_config = x86_init_uint_noop;
+
+ xen_boot_params_init_edd();
}
#ifdef CONFIG_PCI
/* PCI BIOS service won't work from a PV guest. */
switch (action) {
case CPU_UP_PREPARE:
xen_vcpu_setup(cpu);
- if (xen_have_vector_callback)
+ if (xen_have_vector_callback) {
xen_init_lock_cpu(cpu);
+ if (xen_feature(XENFEAT_hvm_safe_pvclock))
+ xen_setup_timer(cpu);
+ }
break;
default:
break;
TC can be used for other purposes, such as PWM generation and
interval timing.
+config DUMMY_IRQ
+ tristate "Dummy IRQ handler"
+ default n
+ ---help---
+ This module accepts a single 'irq' parameter, which it should register for.
+ The sole purpose of this module is to help with debugging of systems on
+ which spurious IRQs would happen on disabled IRQ vector.
+
config IBM_ASM
tristate "Device driver for IBM RSA service processor"
depends on X86 && PCI && INPUT
config SPEAR13XX_PCIE_GADGET
bool "PCIe gadget support for SPEAr13XX platform"
- depends on ARCH_SPEAR13XX
+ depends on ARCH_SPEAR13XX && BROKEN
default n
help
This option enables gadget support for PCIe controller. If
config VMWARE_BALLOON
tristate "VMware Balloon Driver"
- depends on X86
+ depends on X86 && HYPERVISOR_GUEST
help
This is VMware physical memory management driver which acts
like a "balloon" that can be inflated to reclaim physical pages
If unsure, say N.
+config SRAM
+ bool "Generic on-chip SRAM driver"
+ depends on HAS_IOMEM
+ select GENERIC_ALLOCATOR
+ help
+ This driver allows you to declare a memory region to be managed by
+ the genalloc API. It is supposed to be used for small on-chip SRAM
+ areas found on many SoCs.
+
source "drivers/misc/c2port/Kconfig"
source "drivers/misc/eeprom/Kconfig"
source "drivers/misc/cb710/Kconfig"
projects / linux.git / commitdiff