[PATCH 6/9] target/i386: sev: Remove redundant cbitpos and reduced_phys_bits fields

From: David Gibson <david@gibson.dropbear.id.au>
To: rth@twiddle.net, pbonzini@redhat.com, ekabkost@redhat.com,
	qemu-devel@nongnu.org
Cc: brijesh.singh@amd.com, Eduardo Habkost <ehabkost@redhat.com>,
	Richard Henderson <richard.henderson@linaro.org>,
	dgilbert@redhat.com, philmd@redhat.com,
	David Gibson <david@gibson.dropbear.id.au>
Subject: [PATCH 6/9] target/i386: sev: Remove redundant cbitpos and reduced_phys_bits fields
Date: Thu,  4 Jun 2020 16:42:16 +1000	[thread overview]
Message-ID: <20200604064219.436242-7-david@gibson.dropbear.id.au> (raw)
In-Reply-To: <20200604064219.436242-1-david@gibson.dropbear.id.au>

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 <david@gibson.dropbear.id.au>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
---
 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


