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s390x: remember the maximum page size

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Let's remember the value (successfully) set via s390_set_max_pagesize().
This will be helpful to reject hotplugged memory devices that would exceed
this initially set page size.

Handle it just like how we handle s390_get_memory_limit(), storing it in
the machine, and moving the handling to machine code.

Message-ID: <20241219144115.2820241-13-david@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
This commit is contained in:
David Hildenbrand 2024-12-19 15:41:13 +01:00
parent a056332e73
commit df2ac211a6
4 changed files with 12 additions and 9 deletions
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7
target/s390x/cpu-sysemu.c
View file

@ -255,13 +255,6 @@ unsigned int s390_cpu_set_state(uint8_t cpu_state, S390CPU *cpu)
return s390_count_running_cpus();
}
void s390_set_max_pagesize(uint64_t pagesize, Error **errp)
{
if (kvm_enabled()) {
kvm_s390_set_max_pagesize(pagesize, errp);
}
}
void s390_cmma_reset(void)
{
if (kvm_enabled()) {

1
target/s390x/cpu.h
View file

@ -881,7 +881,6 @@ static inline void s390_do_cpu_load_normal(CPUState *cs, run_on_cpu_data arg)
/* cpu.c */
void s390_crypto_reset(void);
void s390_set_max_pagesize(uint64_t pagesize, Error **errp);
void s390_cmma_reset(void);
void s390_enable_css_support(S390CPU *cpu);
void s390_do_cpu_set_diag318(CPUState *cs, run_on_cpu_data arg);