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authorLinus Torvalds <torvalds@linux-foundation.org>2017-11-13 17:04:36 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2017-11-13 17:04:36 -0800
commit43ff2f4db9d0f76452b77cfa645f02b471143b24 (patch)
treee325c1498c9945ec29c5b960008426e2f9592092 /arch/x86/xen
parent13e57da4a5eaae0b400cf06c37b7e9b5347b7335 (diff)
parent418492ba40b2c2bbdaf1a169aac5b1673bde8189 (diff)
downloadlinux-43ff2f4db9d0f76452b77cfa645f02b471143b24.tar.bz2
Merge branch 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 platform updates from Ingo Molnar: "The main changes in this cycle were: - a refactoring of the early virt init code by merging 'struct x86_hyper' into 'struct x86_platform' and 'struct x86_init', which allows simplifications and also the addition of a new ->guest_late_init() callback. (Juergen Gross) - timer_setup() conversion of the UV code (Kees Cook)" * 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/virt/xen: Use guest_late_init to detect Xen PVH guest x86/virt, x86/platform: Add ->guest_late_init() callback to hypervisor_x86 structure x86/virt, x86/acpi: Add test for ACPI_FADT_NO_VGA x86/virt: Add enum for hypervisors to replace x86_hyper x86/virt, x86/platform: Merge 'struct x86_hyper' into 'struct x86_platform' and 'struct x86_init' x86/platform/UV: Convert timers to use timer_setup()
Diffstat (limited to 'arch/x86/xen')
-rw-r--r--arch/x86/xen/enlighten_hvm.c36
-rw-r--r--arch/x86/xen/enlighten_pv.c6
-rw-r--r--arch/x86/xen/enlighten_pvh.c9
3 files changed, 31 insertions, 20 deletions
diff --git a/arch/x86/xen/enlighten_hvm.c b/arch/x86/xen/enlighten_hvm.c
index de503c225ae1..826898701045 100644
--- a/arch/x86/xen/enlighten_hvm.c
+++ b/arch/x86/xen/enlighten_hvm.c
@@ -1,3 +1,4 @@
+#include <linux/acpi.h>
#include <linux/cpu.h>
#include <linux/kexec.h>
#include <linux/memblock.h>
@@ -188,8 +189,6 @@ static void __init xen_hvm_guest_init(void)
xen_hvm_init_time_ops();
xen_hvm_init_mmu_ops();
- if (xen_pvh_domain())
- machine_ops.emergency_restart = xen_emergency_restart;
#ifdef CONFIG_KEXEC_CORE
machine_ops.shutdown = xen_hvm_shutdown;
machine_ops.crash_shutdown = xen_hvm_crash_shutdown;
@@ -226,12 +225,33 @@ static uint32_t __init xen_platform_hvm(void)
return xen_cpuid_base();
}
-const struct hypervisor_x86 x86_hyper_xen_hvm = {
+static __init void xen_hvm_guest_late_init(void)
+{
+#ifdef CONFIG_XEN_PVH
+ /* Test for PVH domain (PVH boot path taken overrides ACPI flags). */
+ if (!xen_pvh &&
+ (x86_platform.legacy.rtc || !x86_platform.legacy.no_vga))
+ return;
+
+ /* PVH detected. */
+ xen_pvh = true;
+
+ /* Make sure we don't fall back to (default) ACPI_IRQ_MODEL_PIC. */
+ if (!nr_ioapics && acpi_irq_model == ACPI_IRQ_MODEL_PIC)
+ acpi_irq_model = ACPI_IRQ_MODEL_PLATFORM;
+
+ machine_ops.emergency_restart = xen_emergency_restart;
+ pv_info.name = "Xen PVH";
+#endif
+}
+
+const __initconst struct hypervisor_x86 x86_hyper_xen_hvm = {
.name = "Xen HVM",
.detect = xen_platform_hvm,
- .init_platform = xen_hvm_guest_init,
- .pin_vcpu = xen_pin_vcpu,
- .x2apic_available = xen_x2apic_para_available,
- .init_mem_mapping = xen_hvm_init_mem_mapping,
+ .type = X86_HYPER_XEN_HVM,
+ .init.init_platform = xen_hvm_guest_init,
+ .init.x2apic_available = xen_x2apic_para_available,
+ .init.init_mem_mapping = xen_hvm_init_mem_mapping,
+ .init.guest_late_init = xen_hvm_guest_late_init,
+ .runtime.pin_vcpu = xen_pin_vcpu,
};
-EXPORT_SYMBOL(x86_hyper_xen_hvm);
diff --git a/arch/x86/xen/enlighten_pv.c b/arch/x86/xen/enlighten_pv.c
index e55d276afc70..fbd054d6ac97 100644
--- a/arch/x86/xen/enlighten_pv.c
+++ b/arch/x86/xen/enlighten_pv.c
@@ -1459,9 +1459,9 @@ static uint32_t __init xen_platform_pv(void)
return 0;
}
-const struct hypervisor_x86 x86_hyper_xen_pv = {
+const __initconst struct hypervisor_x86 x86_hyper_xen_pv = {
.name = "Xen PV",
.detect = xen_platform_pv,
- .pin_vcpu = xen_pin_vcpu,
+ .type = X86_HYPER_XEN_PV,
+ .runtime.pin_vcpu = xen_pin_vcpu,
};
-EXPORT_SYMBOL(x86_hyper_xen_pv);
diff --git a/arch/x86/xen/enlighten_pvh.c b/arch/x86/xen/enlighten_pvh.c
index 7bd3ee08393e..436c4f003e17 100644
--- a/arch/x86/xen/enlighten_pvh.c
+++ b/arch/x86/xen/enlighten_pvh.c
@@ -25,13 +25,6 @@ struct boot_params pvh_bootparams __attribute__((section(".data")));
struct hvm_start_info pvh_start_info;
unsigned int pvh_start_info_sz = sizeof(pvh_start_info);
-static void xen_pvh_arch_setup(void)
-{
- /* Make sure we don't fall back to (default) ACPI_IRQ_MODEL_PIC. */
- if (nr_ioapics == 0)
- acpi_irq_model = ACPI_IRQ_MODEL_PLATFORM;
-}
-
static void __init init_pvh_bootparams(void)
{
struct xen_memory_map memmap;
@@ -102,6 +95,4 @@ void __init xen_prepare_pvh(void)
wrmsr_safe(msr, (u32)pfn, (u32)(pfn >> 32));
init_pvh_bootparams();
-
- x86_init.oem.arch_setup = xen_pvh_arch_setup;
}