Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull RISC-V kvm updates from Paolo Bonzini:

 - Allow unloading KVM module

 - Allow KVM user-space to set mvendorid, marchid, and mimpid

 - Several fixes and cleanups

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  RISC-V: KVM: Add ONE_REG interface for mvendorid, marchid, and mimpid
  RISC-V: KVM: Save mvendorid, marchid, and mimpid when creating VCPU
  RISC-V: Export sbi_get_mvendorid() and friends
  RISC-V: KVM: Move sbi related struct and functions to kvm_vcpu_sbi.h
  RISC-V: KVM: Use switch-case in kvm_riscv_vcpu_set/get_reg()
  RISC-V: KVM: Remove redundant includes of asm/csr.h
  RISC-V: KVM: Remove redundant includes of asm/kvm_vcpu_timer.h
  RISC-V: KVM: Fix reg_val check in kvm_riscv_vcpu_set_reg_config()
  RISC-V: KVM: Simplify kvm_arch_prepare_memory_region()
  RISC-V: KVM: Exit run-loop immediately if xfer_to_guest fails
  RISC-V: KVM: use vma_lookup() instead of find_vma_intersection()
  RISC-V: KVM: Add exit logic to main.c

3 files changed, 16 insertions, 9 deletions

diff --git a/arch/riscv/include/asm/kvm_host.h b/arch/riscv/include/asm/kvm_host.h
index dbbf43d52623..93f43a3e7886 100644
--- a/arch/riscv/include/asm/kvm_host.h
+++ b/arch/riscv/include/asm/kvm_host.h
@@ -13,10 +13,10 @@
 #include <linux/kvm.h>
 #include <linux/kvm_types.h>
 #include <linux/spinlock.h>
-#include <asm/csr.h>
 #include <asm/hwcap.h>
 #include <asm/kvm_vcpu_fp.h>
 #include <asm/kvm_vcpu_insn.h>
+#include <asm/kvm_vcpu_sbi.h>
 #include <asm/kvm_vcpu_timer.h>
 
 #define KVM_MAX_VCPUS			1024
@@ -95,10 +95,6 @@ struct kvm_arch {
 	struct kvm_guest_timer timer;
 };
 
-struct kvm_sbi_context {
-	int return_handled;
-};
-
 struct kvm_cpu_trap {
 	unsigned long sepc;
 	unsigned long scause;
@@ -169,6 +165,11 @@ struct kvm_vcpu_arch {
 	/* ISA feature bits (similar to MISA) */
 	DECLARE_BITMAP(isa, RISCV_ISA_EXT_MAX);
 
+	/* Vendor, Arch, and Implementation details */
+	unsigned long mvendorid;
+	unsigned long marchid;
+	unsigned long mimpid;
+
 	/* SSCRATCH, STVEC, and SCOUNTEREN of Host */
 	unsigned long host_sscratch;
 	unsigned long host_stvec;
@@ -217,7 +218,7 @@ struct kvm_vcpu_arch {
 	struct kvm_csr_decode csr_decode;
 
 	/* SBI context */
-	struct kvm_sbi_context sbi_context;
+	struct kvm_vcpu_sbi_context sbi_context;
 
 	/* Cache pages needed to program page tables with spinlock held */
 	struct kvm_mmu_memory_cache mmu_page_cache;
@@ -327,7 +328,4 @@ bool kvm_riscv_vcpu_has_interrupts(struct kvm_vcpu *vcpu, unsigned long mask);
 void kvm_riscv_vcpu_power_off(struct kvm_vcpu *vcpu);
 void kvm_riscv_vcpu_power_on(struct kvm_vcpu *vcpu);
 
-int kvm_riscv_vcpu_sbi_return(struct kvm_vcpu *vcpu, struct kvm_run *run);
-int kvm_riscv_vcpu_sbi_ecall(struct kvm_vcpu *vcpu, struct kvm_run *run);
-
 #endif /* __RISCV_KVM_HOST_H__ */
diff --git a/arch/riscv/include/asm/kvm_vcpu_sbi.h b/arch/riscv/include/asm/kvm_vcpu_sbi.h
index d4e3e600beef..f79478a85d2d 100644
--- a/arch/riscv/include/asm/kvm_vcpu_sbi.h
+++ b/arch/riscv/include/asm/kvm_vcpu_sbi.h
@@ -14,6 +14,10 @@
 #define KVM_SBI_VERSION_MAJOR 1
 #define KVM_SBI_VERSION_MINOR 0
 
+struct kvm_vcpu_sbi_context {
+	int return_handled;
+};
+
 struct kvm_vcpu_sbi_extension {
 	unsigned long extid_start;
 	unsigned long extid_end;
@@ -31,7 +35,9 @@ void kvm_riscv_vcpu_sbi_forward(struct kvm_vcpu *vcpu, struct kvm_run *run);
 void kvm_riscv_vcpu_sbi_system_reset(struct kvm_vcpu *vcpu,
 				     struct kvm_run *run,
 				     u32 type, u64 flags);
+int kvm_riscv_vcpu_sbi_return(struct kvm_vcpu *vcpu, struct kvm_run *run);
 const struct kvm_vcpu_sbi_extension *kvm_vcpu_sbi_find_ext(unsigned long extid);
+int kvm_riscv_vcpu_sbi_ecall(struct kvm_vcpu *vcpu, struct kvm_run *run);
 
 #ifdef CONFIG_RISCV_SBI_V01
 extern const struct kvm_vcpu_sbi_extension vcpu_sbi_ext_v01;
diff --git a/arch/riscv/include/uapi/asm/kvm.h b/arch/riscv/include/uapi/asm/kvm.h
index 8985ff234c01..92af6f3f057c 100644
--- a/arch/riscv/include/uapi/asm/kvm.h
+++ b/arch/riscv/include/uapi/asm/kvm.h
@@ -49,6 +49,9 @@ struct kvm_sregs {
 struct kvm_riscv_config {
 	unsigned long isa;
 	unsigned long zicbom_block_size;
+	unsigned long mvendorid;
+	unsigned long marchid;
+	unsigned long mimpid;
 };
 
 /* CORE registers for KVM_GET_ONE_REG and KVM_SET_ONE_REG */