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[RFC v2 06/18] target/i386: sev: Remove redundant cbitpos and reduced_ph
From: |
David Gibson |
Subject: |
[RFC v2 06/18] target/i386: sev: Remove redundant cbitpos and reduced_phys_bits fields |
Date: |
Thu, 21 May 2020 13:42:52 +1000 |
The SEVState structure has cbitpos and reduced_phys_bits fields which are
simply copied from the SevGuestState structure and never changed. Now that
SEVState is embedded in SevGuestState we can just access the original copy
directly.
Signed-off-by: David Gibson <address@hidden>
---
target/i386/sev.c | 19 +++++++------------
1 file changed, 7 insertions(+), 12 deletions(-)
diff --git a/target/i386/sev.c b/target/i386/sev.c
index 9e8ab7b056..d25af37136 100644
--- a/target/i386/sev.c
+++ b/target/i386/sev.c
@@ -41,8 +41,6 @@ struct SEVState {
uint8_t build_id;
uint32_t policy;
uint64_t me_mask;
- uint32_t cbitpos;
- uint32_t reduced_phys_bits;
uint32_t handle;
int sev_fd;
SevState state;
@@ -378,13 +376,13 @@ sev_get_me_mask(void)
uint32_t
sev_get_cbit_position(void)
{
- return sev_guest ? sev_guest->state.cbitpos : 0;
+ return sev_guest ? sev_guest->cbitpos : 0;
}
uint32_t
sev_get_reduced_phys_bits(void)
{
- return sev_guest ? sev_guest->state.reduced_phys_bits : 0;
+ return sev_guest ? sev_guest->reduced_phys_bits : 0;
}
SevInfo *
@@ -713,22 +711,19 @@ sev_guest_init(const char *id)
host_cpuid(0x8000001F, 0, NULL, &ebx, NULL, NULL);
host_cbitpos = ebx & 0x3f;
- s->cbitpos = object_property_get_int(OBJECT(sev), "cbitpos", NULL);
- if (host_cbitpos != s->cbitpos) {
+ if (host_cbitpos != sev->cbitpos) {
error_report("%s: cbitpos check failed, host '%d' requested '%d'",
- __func__, host_cbitpos, s->cbitpos);
+ __func__, host_cbitpos, sev->cbitpos);
goto err;
}
- s->reduced_phys_bits = object_property_get_int(OBJECT(sev),
- "reduced-phys-bits", NULL);
- if (s->reduced_phys_bits < 1) {
+ if (sev->reduced_phys_bits < 1) {
error_report("%s: reduced_phys_bits check failed, it should be >=1,"
- " requested '%d'", __func__, s->reduced_phys_bits);
+ " requested '%d'", __func__, sev->reduced_phys_bits);
goto err;
}
- s->me_mask = ~(1UL << s->cbitpos);
+ s->me_mask = ~(1UL << sev->cbitpos);
devname = object_property_get_str(OBJECT(sev), "sev-device", NULL);
s->sev_fd = open(devname, O_RDWR);
--
2.26.2
- Re: [RFC v2 11/18] guest memory protection: Handle memory encrption via interface, (continued)
- [RFC v2 09/18] target/i386: sev: Unify SEVState and SevGuestState, David Gibson, 2020/05/20
- [RFC v2 03/18] target/i386: sev: Rename QSevGuestInfo, David Gibson, 2020/05/20
- [RFC v2 05/18] target/i386: sev: Partial cleanup to sev_state global, David Gibson, 2020/05/20
- [RFC v2 08/18] target/i386: sev: Remove redundant handle field, David Gibson, 2020/05/20
- [RFC v2 12/18] guest memory protection: Perform KVM init via interface, David Gibson, 2020/05/20
- [RFC v2 13/18] guest memory protection: Move side effect out of machine_set_memory_encryption(), David Gibson, 2020/05/20
- [RFC v2 15/18] guest memory protection: Decouple kvm_memcrypt_*() helpers from KVM, David Gibson, 2020/05/20
- [RFC v2 06/18] target/i386: sev: Remove redundant cbitpos and reduced_phys_bits fields,
David Gibson <=
- [RFC v2 14/18] guest memory protection: Rework the "memory-encryption" property, David Gibson, 2020/05/20
- [RFC v2 17/18] spapr: Added PEF based guest memory protection, David Gibson, 2020/05/20
- [RFC v2 10/18] guest memory protection: Add guest memory protection interface, David Gibson, 2020/05/20
- [RFC v2 16/18] guest memory protection: Add Error ** to GuestMemoryProtection::kvm_init, David Gibson, 2020/05/20
- [RFC v2 18/18] guest memory protection: Alter virtio default properties for protected guests, David Gibson, 2020/05/20