Sean Christopherson 2031f28768 KVM: Add helpers to wrap vcpu->srcu_idx and yell if it's abused ... Add wrappers to acquire/release KVM's SRCU lock when stashing the index in vcpu->src_idx, along with rudimentary detection of illegal usage, e.g. re-acquiring SRCU and thus overwriting vcpu->src_idx. Because the SRCU index is (currently) either 0 or 1, illegal nesting bugs can go unnoticed for quite some time and only cause problems when the nested lock happens to get a different index. Wrap the WARNs in PROVE_RCU=y, and make them ONCE, otherwise KVM will likely yell so loudly that it will bring the kernel to its knees. Signed-off-by: Sean Christopherson <seanjc@google.com> Tested-by: Fabiano Rosas <farosas@linux.ibm.com> Message-Id: <20220415004343.2203171-4-seanjc@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>		2022-04-21 13:16:11 -04:00
..
Kconfig	riscv: do not select non-existing config ANON_INODES	2021-10-22 05:53:37 -04:00
main.c	KVM: RISC-V: Avoid spurious virtual interrupts after clearing hideleg CSR	2022-01-06 15:18:18 +05:30
Makefile	RISC-V: KVM: Add SBI HSM extension in KVM	2022-01-06 15:12:47 +05:30
mmu.c	RISC-V: Do not use cpumask data structure for hartid bitmap	2022-01-20 09:27:22 -08:00
tlb.S	RISC-V: KVM: Fix GPA passed to __kvm_riscv_hfence_gvma_xyz() functions	2021-10-31 02:45:43 -04:00
vcpu_exit.c	KVM: Add helpers to wrap vcpu->srcu_idx and yell if it's abused	2022-04-21 13:16:11 -04:00
vcpu_fp.c	RISC-V: KVM: include missing hwcap.h into vcpu_fp	2022-04-09 09:16:00 +05:30
vcpu_sbi_base.c	RISC-V: KVM: Fix SBI implementation version	2022-02-02 18:58:06 +05:30
vcpu_sbi_hsm.c	RISC-V: KVM: Implement SBI HSM suspend call	2022-03-11 19:02:39 +05:30
vcpu_sbi_replace.c	RISC-V: KVM: Implement SBI v0.3 SRST extension	2022-03-11 19:02:31 +05:30
vcpu_sbi_v01.c	RISC-V: KVM: Add common kvm_riscv_vcpu_sbi_system_reset() function	2022-03-11 19:02:29 +05:30
vcpu_sbi.c	RISC-V: KVM: Implement SBI v0.3 SRST extension	2022-03-11 19:02:31 +05:30
vcpu_switch.S	RISC-V: KVM: Refine __kvm_riscv_switch_to() implementation	2022-03-11 19:02:22 +05:30
vcpu_timer.c	RISC-V: KVM: remove unneeded semicolon	2021-11-01 17:35:13 +05:30
vcpu.c	KVM: Add helpers to wrap vcpu->srcu_idx and yell if it's abused	2022-04-21 13:16:11 -04:00
vm.c	RISC-V: KVM: Add VM capability to allow userspace get GPA bits	2022-01-06 15:16:58 +05:30
vmid.c	RISC-V: Do not use cpumask data structure for hartid bitmap	2022-01-20 09:27:22 -08:00