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s390x: Add protected dump cap

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Add a protected dump capability for later feature checking.

Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
Reviewed-by: Steffen Eiden <seiden@linux.ibm.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Janis Schoetterl-Glausch <scgl@linux.ibm.com>
Message-Id: <20221017083822.43118-7-frankja@linux.ibm.com>
[ Marc-André - Add missing stubs when !kvm ]
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
This commit is contained in:
Janosch Frank 2022-10-17 08:38:18 +00:00 committed by Marc-André Lureau
parent 9b72224f44
commit ad3b2e693d
4 changed files with 22 additions and 0 deletions
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7
target/s390x/kvm/kvm.c
View file

@ -158,6 +158,7 @@ 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;
@ -364,6 +365,7 @@ 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);
@ -2045,6 +2047,11 @@ 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;

1
target/s390x/kvm/kvm_s390x.h
View file

@ -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);

2
target/s390x/kvm/meson.build
View file

@ -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

12
target/s390x/kvm/stubs.c Normal file
View file

@ -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;
}