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[src/trunk]: src A few changes:



details:   https://anonhg.NetBSD.org/src/rev/8a62adf16638
branches:  trunk
changeset: 846009:8a62adf16638
user:      maxv <maxv%NetBSD.org@localhost>
date:      Mon Oct 28 08:30:49 2019 +0000

description:
A few changes:

 - Use smaller types in struct nvmm_capability.
 - Use smaller type for nvmm_io.port.
 - Switch exitstate to a compacted structure.

diffstat:

 lib/libnvmm/libnvmm.3           |  10 ++++++----
 lib/libnvmm/nvmm.h              |   4 ++--
 sys/dev/nvmm/nvmm.h             |  10 +++++-----
 sys/dev/nvmm/x86/nvmm_x86.h     |  22 +++++++++++-----------
 sys/dev/nvmm/x86/nvmm_x86_svm.c |  21 ++++++++-------------
 sys/dev/nvmm/x86/nvmm_x86_vmx.c |  20 ++++++++------------
 6 files changed, 40 insertions(+), 47 deletions(-)

diffs (216 lines):

diff -r 4c91c5de0515 -r 8a62adf16638 lib/libnvmm/libnvmm.3
--- a/lib/libnvmm/libnvmm.3     Mon Oct 28 06:37:51 2019 +0000
+++ b/lib/libnvmm/libnvmm.3     Mon Oct 28 08:30:49 2019 +0000
@@ -1,4 +1,4 @@
-.\"    $NetBSD: libnvmm.3,v 1.22 2019/10/27 10:28:55 maxv Exp $
+.\"    $NetBSD: libnvmm.3,v 1.23 2019/10/28 08:30:49 maxv Exp $
 .\"
 .\" Copyright (c) 2018, 2019 The NetBSD Foundation, Inc.
 .\" All rights reserved.
@@ -27,7 +27,7 @@
 .\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 .\" POSSIBILITY OF SUCH DAMAGE.
 .\"
-.Dd October 27, 2019
+.Dd October 28, 2019
 .Dt LIBNVMM 3
 .Os
 .Sh NAME
@@ -502,7 +502,9 @@
        union {
                ...
        } u;
-       uint64_t exitstate[8];
+       struct {
+               ...
+       } exitstate;
 };
 .Ed
 .Pp
@@ -611,7 +613,7 @@
 struct nvmm_io {
        struct nvmm_machine *mach;
        struct nvmm_vcpu *vcpu;
-       uint64_t port;
+       uint16_t port;
        bool in;
        size_t size;
        uint8_t *data;
diff -r 4c91c5de0515 -r 8a62adf16638 lib/libnvmm/nvmm.h
--- a/lib/libnvmm/nvmm.h        Mon Oct 28 06:37:51 2019 +0000
+++ b/lib/libnvmm/nvmm.h        Mon Oct 28 08:30:49 2019 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: nvmm.h,v 1.16 2019/10/27 20:17:36 maxv Exp $   */
+/*     $NetBSD: nvmm.h,v 1.17 2019/10/28 08:30:49 maxv Exp $   */
 
 /*
  * Copyright (c) 2018-2019 The NetBSD Foundation, Inc.
@@ -65,7 +65,7 @@
 struct nvmm_io {
        struct nvmm_machine *mach;
        struct nvmm_vcpu *vcpu;
-       uint64_t port;
+       uint16_t port;
        bool in;
        size_t size;
        uint8_t *data;
diff -r 4c91c5de0515 -r 8a62adf16638 sys/dev/nvmm/nvmm.h
--- a/sys/dev/nvmm/nvmm.h       Mon Oct 28 06:37:51 2019 +0000
+++ b/sys/dev/nvmm/nvmm.h       Mon Oct 28 08:30:49 2019 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: nvmm.h,v 1.11 2019/10/23 07:01:11 maxv Exp $   */
+/*     $NetBSD: nvmm.h,v 1.12 2019/10/28 08:30:49 maxv Exp $   */
 
 /*
  * Copyright (c) 2018-2019 The NetBSD Foundation, Inc.
@@ -51,10 +51,10 @@
 #define NVMM_KERN_VERSION              1
 
 struct nvmm_capability {
-       uint64_t version;
-       uint64_t state_size;
-       uint64_t max_machines;
-       uint64_t max_vcpus;
+       uint32_t version;
+       uint32_t state_size;
+       uint32_t max_machines;
+       uint32_t max_vcpus;
        uint64_t max_ram;
        struct nvmm_cap_md arch;
 };
diff -r 4c91c5de0515 -r 8a62adf16638 sys/dev/nvmm/x86/nvmm_x86.h
--- a/sys/dev/nvmm/x86/nvmm_x86.h       Mon Oct 28 06:37:51 2019 +0000
+++ b/sys/dev/nvmm/x86/nvmm_x86.h       Mon Oct 28 08:30:49 2019 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: nvmm_x86.h,v 1.17 2019/10/27 10:28:55 maxv Exp $       */
+/*     $NetBSD: nvmm_x86.h,v 1.18 2019/10/28 08:30:49 maxv Exp $       */
 
 /*
  * Copyright (c) 2018-2019 The NetBSD Foundation, Inc.
@@ -102,7 +102,15 @@
                struct nvmm_x86_exit_insn insn;
                struct nvmm_x86_exit_invalid inv;
        } u;
-       uint64_t exitstate[8];
+       struct {
+               uint64_t rflags;
+               uint64_t cr8;
+               uint64_t int_shadow:1;
+               uint64_t int_window_exiting:1;
+               uint64_t nmi_window_exiting:1;
+               uint64_t evt_pending:1;
+               uint64_t rsvd:60;
+       } exitstate;
 };
 
 #define NVMM_VCPU_EVENT_EXCP   0
@@ -128,7 +136,7 @@
        uint64_t xcr0_mask;
        uint32_t mxcsr_mask;
        uint32_t conf_cpuid_maxops;
-       uint64_t rsvd[4];
+       uint64_t rsvd[6];
 };
 
 #endif
@@ -236,14 +244,6 @@
        uint64_t rsvd:60;
 };
 
-/* VM exit state indexes. */
-#define NVMM_X64_EXITSTATE_CR8                 0
-#define NVMM_X64_EXITSTATE_RFLAGS              1
-#define NVMM_X64_EXITSTATE_INT_SHADOW          2
-#define NVMM_X64_EXITSTATE_INT_WINDOW_EXIT     3
-#define NVMM_X64_EXITSTATE_NMI_WINDOW_EXIT     4
-#define NVMM_X64_EXITSTATE_EVT_PENDING         5
-
 /* Flags. */
 #define NVMM_X64_STATE_SEGS    0x01
 #define NVMM_X64_STATE_GPRS    0x02
diff -r 4c91c5de0515 -r 8a62adf16638 sys/dev/nvmm/x86/nvmm_x86_svm.c
--- a/sys/dev/nvmm/x86/nvmm_x86_svm.c   Mon Oct 28 06:37:51 2019 +0000
+++ b/sys/dev/nvmm/x86/nvmm_x86_svm.c   Mon Oct 28 08:30:49 2019 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: nvmm_x86_svm.c,v 1.52 2019/10/27 10:28:55 maxv Exp $   */
+/*     $NetBSD: nvmm_x86_svm.c,v 1.53 2019/10/28 08:30:49 maxv Exp $   */
 
 /*
  * Copyright (c) 2018-2019 The NetBSD Foundation, Inc.
@@ -30,7 +30,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: nvmm_x86_svm.c,v 1.52 2019/10/27 10:28:55 maxv Exp $");
+__KERNEL_RCSID(0, "$NetBSD: nvmm_x86_svm.c,v 1.53 2019/10/28 08:30:49 maxv Exp $");
 
 #include <sys/param.h>
 #include <sys/systm.h>
@@ -1452,18 +1452,13 @@
 
        kpreempt_enable();
 
-       exit->exitstate[NVMM_X64_EXITSTATE_CR8] = __SHIFTOUT(vmcb->ctrl.v,
-           VMCB_CTRL_V_TPR);
-       exit->exitstate[NVMM_X64_EXITSTATE_RFLAGS] = vmcb->state.rflags;
-
-       exit->exitstate[NVMM_X64_EXITSTATE_INT_SHADOW] =
+       exit->exitstate.rflags = vmcb->state.rflags;
+       exit->exitstate.cr8 = __SHIFTOUT(vmcb->ctrl.v, VMCB_CTRL_V_TPR);
+       exit->exitstate.int_shadow =
            ((vmcb->ctrl.intr & VMCB_CTRL_INTR_SHADOW) != 0);
-       exit->exitstate[NVMM_X64_EXITSTATE_INT_WINDOW_EXIT] =
-           cpudata->int_window_exit;
-       exit->exitstate[NVMM_X64_EXITSTATE_NMI_WINDOW_EXIT] =
-           cpudata->nmi_window_exit;
-       exit->exitstate[NVMM_X64_EXITSTATE_EVT_PENDING] =
-           cpudata->evt_pending;
+       exit->exitstate.int_window_exiting = cpudata->int_window_exit;
+       exit->exitstate.nmi_window_exiting = cpudata->nmi_window_exit;
+       exit->exitstate.evt_pending = cpudata->evt_pending;
 
        return 0;
 }
diff -r 4c91c5de0515 -r 8a62adf16638 sys/dev/nvmm/x86/nvmm_x86_vmx.c
--- a/sys/dev/nvmm/x86/nvmm_x86_vmx.c   Mon Oct 28 06:37:51 2019 +0000
+++ b/sys/dev/nvmm/x86/nvmm_x86_vmx.c   Mon Oct 28 08:30:49 2019 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: nvmm_x86_vmx.c,v 1.43 2019/10/27 18:26:54 maxv Exp $   */
+/*     $NetBSD: nvmm_x86_vmx.c,v 1.44 2019/10/28 08:30:49 maxv Exp $   */
 
 /*
  * Copyright (c) 2018-2019 The NetBSD Foundation, Inc.
@@ -30,7 +30,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: nvmm_x86_vmx.c,v 1.43 2019/10/27 18:26:54 maxv Exp $");
+__KERNEL_RCSID(0, "$NetBSD: nvmm_x86_vmx.c,v 1.44 2019/10/28 08:30:49 maxv Exp $");
 
 #include <sys/param.h>
 #include <sys/systm.h>
@@ -2072,18 +2072,14 @@
        vmx_vcpu_guest_misc_leave(vcpu);
        vmx_vcpu_guest_dbregs_leave(vcpu);
 
-       exit->exitstate[NVMM_X64_EXITSTATE_CR8] = cpudata->gcr8;
-       exit->exitstate[NVMM_X64_EXITSTATE_RFLAGS] =
-           vmx_vmread(VMCS_GUEST_RFLAGS);
+       exit->exitstate.rflags = vmx_vmread(VMCS_GUEST_RFLAGS);
+       exit->exitstate.cr8 = cpudata->gcr8;
        intstate = vmx_vmread(VMCS_GUEST_INTERRUPTIBILITY);
-       exit->exitstate[NVMM_X64_EXITSTATE_INT_SHADOW] =
+       exit->exitstate.int_shadow =
            (intstate & (INT_STATE_STI|INT_STATE_MOVSS)) != 0;
-       exit->exitstate[NVMM_X64_EXITSTATE_INT_WINDOW_EXIT] =
-           cpudata->int_window_exit;
-       exit->exitstate[NVMM_X64_EXITSTATE_NMI_WINDOW_EXIT] =
-           cpudata->nmi_window_exit;
-       exit->exitstate[NVMM_X64_EXITSTATE_EVT_PENDING] =
-           cpudata->evt_pending;
+       exit->exitstate.int_window_exiting = cpudata->int_window_exit;
+       exit->exitstate.nmi_window_exiting = cpudata->nmi_window_exit;
+       exit->exitstate.evt_pending = cpudata->evt_pending;
 
        vmx_vmcs_leave(vcpu);
 



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