From 7634eed5aea61dc94f9a828c62ef3da9aeaa62ae Mon Sep 17 00:00:00 2001 From: Janosch Frank Date: Mon, 17 Oct 2022 08:38:18 +0000 Subject: [PATCH 37/42] s390x: Add protected dump cap MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit RH-Author: Cédric Le Goater RH-MergeRequest: 226: s390: Enhanced Interpretation for PCI Functions and Secure Execution guest dump RH-Bugzilla: 1664378 2043909 RH-Acked-by: Thomas Huth RH-Acked-by: Cornelia Huck RH-Acked-by: Jon Maloy RH-Commit: [37/41] 52e1e7bf1a00ce3a220d3db2f733a65548bfec6d Add a protected dump capability for later feature checking. Signed-off-by: Janosch Frank Reviewed-by: Steffen Eiden Reviewed-by: Thomas Huth Reviewed-by: Janis Schoetterl-Glausch Message-Id: <20221017083822.43118-7-frankja@linux.ibm.com> [ Marc-André - Add missing stubs when !kvm ] Signed-off-by: Marc-André Lureau (cherry picked from commit ad3b2e693daac6ed92db7361236028851d37c77c) Signed-off-by: Cédric Le Goater --- target/s390x/kvm/kvm.c | 7 +++++++ target/s390x/kvm/kvm_s390x.h | 1 + target/s390x/kvm/meson.build | 2 ++ target/s390x/kvm/stubs.c | 12 ++++++++++++ 4 files changed, 22 insertions(+) create mode 100644 target/s390x/kvm/stubs.c diff --git a/target/s390x/kvm/kvm.c b/target/s390x/kvm/kvm.c index 30712487d4..d36b44f32a 100644 --- a/target/s390x/kvm/kvm.c +++ b/target/s390x/kvm/kvm.c @@ -159,6 +159,7 @@ static int cap_hpage_1m; static int cap_vcpu_resets; static int cap_protected; static int cap_zpci_op; +static int cap_protected_dump; static bool mem_op_storage_key_support; @@ -365,6 +366,7 @@ int kvm_arch_init(MachineState *ms, KVMState *s) cap_vcpu_resets = kvm_check_extension(s, KVM_CAP_S390_VCPU_RESETS); cap_protected = kvm_check_extension(s, KVM_CAP_S390_PROTECTED); cap_zpci_op = kvm_check_extension(s, KVM_CAP_S390_ZPCI_OP); + cap_protected_dump = kvm_check_extension(s, KVM_CAP_S390_PROTECTED_DUMP); kvm_vm_enable_cap(s, KVM_CAP_S390_USER_SIGP, 0); kvm_vm_enable_cap(s, KVM_CAP_S390_VECTOR_REGISTERS, 0); @@ -2042,6 +2044,11 @@ int kvm_s390_assign_subch_ioeventfd(EventNotifier *notifier, uint32_t sch, return kvm_vm_ioctl(kvm_state, KVM_IOEVENTFD, &kick); } +int kvm_s390_get_protected_dump(void) +{ + return cap_protected_dump; +} + int kvm_s390_get_ri(void) { return cap_ri; diff --git a/target/s390x/kvm/kvm_s390x.h b/target/s390x/kvm/kvm_s390x.h index aaae8570de..f9785564d0 100644 --- a/target/s390x/kvm/kvm_s390x.h +++ b/target/s390x/kvm/kvm_s390x.h @@ -26,6 +26,7 @@ int kvm_s390_set_cpu_state(S390CPU *cpu, uint8_t cpu_state); void kvm_s390_vcpu_interrupt_pre_save(S390CPU *cpu); int kvm_s390_vcpu_interrupt_post_load(S390CPU *cpu); int kvm_s390_get_hpage_1m(void); +int kvm_s390_get_protected_dump(void); int kvm_s390_get_ri(void); int kvm_s390_get_zpci_op(void); int kvm_s390_get_clock(uint8_t *tod_high, uint64_t *tod_clock); diff --git a/target/s390x/kvm/meson.build b/target/s390x/kvm/meson.build index d1356356b1..aef52b6686 100644 --- a/target/s390x/kvm/meson.build +++ b/target/s390x/kvm/meson.build @@ -1,6 +1,8 @@ s390x_ss.add(when: 'CONFIG_KVM', if_true: files( 'kvm.c' +), if_false: files( + 'stubs.c' )) # Newer kernels on s390 check for an S390_PGSTE program header and diff --git a/target/s390x/kvm/stubs.c b/target/s390x/kvm/stubs.c new file mode 100644 index 0000000000..5fd63b9a7e --- /dev/null +++ b/target/s390x/kvm/stubs.c @@ -0,0 +1,12 @@ +/* + * SPDX-License-Identifier: GPL-2.0-or-later + */ + +#include "qemu/osdep.h" + +#include "kvm_s390x.h" + +int kvm_s390_get_protected_dump(void) +{ + return false; +} -- 2.37.3