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authorLinus Torvalds <torvalds@linux-foundation.org>2021-09-01 18:25:20 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2021-09-01 18:25:20 -0700
commitc07f191907e7d7e04034a2b9657a6bbf1355c60a (patch)
tree93940e9c54eeb8121f7bce5e89e652ec7bc6c6f7 /include/asm-generic
parent7c636d4d20f8c5acfbfbc60f326fddb0e1cf5daa (diff)
parent9d68cd9120e4e3af38f843e165631c323b86b4e4 (diff)
Merge tag 'hyperv-next-signed-20210831' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux
Pull hyperv updates from Wei Liu: - make Hyper-V code arch-agnostic (Michael Kelley) - fix sched_clock behaviour on Hyper-V (Ani Sinha) - fix a fault when Linux runs as the root partition on MSHV (Praveen Kumar) - fix VSS driver (Vitaly Kuznetsov) - cleanup (Sonia Sharma) * tag 'hyperv-next-signed-20210831' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux: hv_utils: Set the maximum packet size for VSS driver to the length of the receive buffer Drivers: hv: Enable Hyper-V code to be built on ARM64 arm64: efi: Export screen_info arm64: hyperv: Initialize hypervisor on boot arm64: hyperv: Add panic handler arm64: hyperv: Add Hyper-V hypercall and register access utilities x86/hyperv: fix root partition faults when writing to VP assist page MSR hv: hyperv.h: Remove unused inline functions drivers: hv: Decouple Hyper-V clock/timer code from VMbus drivers x86/hyperv: add comment describing TSC_INVARIANT_CONTROL MSR setting bit 0 Drivers: hv: Move Hyper-V misc functionality to arch-neutral code Drivers: hv: Add arch independent default functions for some Hyper-V handlers Drivers: hv: Make portions of Hyper-V init code be arch neutral x86/hyperv: fix for unwanted manipulation of sched_clock when TSC marked unstable asm-generic/hyperv: Add missing #include of nmi.h
Diffstat (limited to 'include/asm-generic')
-rw-r--r--include/asm-generic/mshyperv.h13
1 files changed, 13 insertions, 0 deletions
diff --git a/include/asm-generic/mshyperv.h b/include/asm-generic/mshyperv.h
index 9a000ba2bb75..c1ab6a6e72b5 100644
--- a/include/asm-generic/mshyperv.h
+++ b/include/asm-generic/mshyperv.h
@@ -22,6 +22,7 @@
#include <linux/atomic.h>
#include <linux/bitops.h>
#include <linux/cpumask.h>
+#include <linux/nmi.h>
#include <asm/ptrace.h>
#include <asm/hyperv-tlfs.h>
@@ -38,6 +39,9 @@ struct ms_hyperv_info {
};
extern struct ms_hyperv_info ms_hyperv;
+extern void __percpu **hyperv_pcpu_input_arg;
+extern void __percpu **hyperv_pcpu_output_arg;
+
extern u64 hv_do_hypercall(u64 control, void *inputaddr, void *outputaddr);
extern u64 hv_do_fast_hypercall8(u16 control, u64 input8);
@@ -151,6 +155,8 @@ void hv_remove_crash_handler(void);
extern int vmbus_interrupt;
extern int vmbus_irq;
+extern bool hv_root_partition;
+
#if IS_ENABLED(CONFIG_HYPERV)
/*
* Hypervisor's notion of virtual processor ID is different from
@@ -161,9 +167,16 @@ extern int vmbus_irq;
extern u32 *hv_vp_index;
extern u32 hv_max_vp_index;
+extern u64 (*hv_read_reference_counter)(void);
+
/* Sentinel value for an uninitialized entry in hv_vp_index array */
#define VP_INVAL U32_MAX
+int __init hv_common_init(void);
+void __init hv_common_free(void);
+int hv_common_cpu_init(unsigned int cpu);
+int hv_common_cpu_die(unsigned int cpu);
+
void *hv_alloc_hyperv_page(void);
void *hv_alloc_hyperv_zeroed_page(void);
void hv_free_hyperv_page(unsigned long addr);