All of lore.kernel.org
 help / color / mirror / Atom feed
From: Mukesh Rathor <mukesh.rathor@oracle.com>
To: Xen-devel@lists.xensource.com
Subject: [PATCH 14/20] PVH xen: some misc changes like mtrr, intr, msi...
Date: Tue, 14 May 2013 17:52:42 -0700	[thread overview]
Message-ID: <1368579168-30829-15-git-send-email-mukesh.rathor@oracle.com> (raw)
In-Reply-To: <1368579168-30829-1-git-send-email-mukesh.rathor@oracle.com>

Changes in irq.c as PVH doesn't use vlapic emulation. In mtrr we add
assert and set MTRR_TYPEs for PVH.

Changes in V2:
   - Some cleanup of redundant code.
   - time.c: Honor no rdtsc exiting for PVH by setting vtsc to 0 in time.c

Changes in V3:
   - Dont check for pvh in making mmio rangesets readonly.

Signed-off-by: Mukesh Rathor <mukesh.rathor@oracle.com>
---
 xen/arch/x86/hvm/irq.c      |    3 +++
 xen/arch/x86/hvm/mtrr.c     |   11 +++++++++++
 xen/arch/x86/hvm/vmx/intr.c |    7 ++++---
 xen/arch/x86/time.c         |    9 +++++++++
 4 files changed, 27 insertions(+), 3 deletions(-)

diff --git a/xen/arch/x86/hvm/irq.c b/xen/arch/x86/hvm/irq.c
index 9eae5de..92fb245 100644
--- a/xen/arch/x86/hvm/irq.c
+++ b/xen/arch/x86/hvm/irq.c
@@ -405,6 +405,9 @@ struct hvm_intack hvm_vcpu_has_pending_irq(struct vcpu *v)
          && vcpu_info(v, evtchn_upcall_pending) )
         return hvm_intack_vector(plat->irq.callback_via.vector);
 
+    if ( is_pvh_vcpu(v) )
+        return hvm_intack_none;
+
     if ( vlapic_accept_pic_intr(v) && plat->vpic[0].int_output )
         return hvm_intack_pic(0);
 
diff --git a/xen/arch/x86/hvm/mtrr.c b/xen/arch/x86/hvm/mtrr.c
index ef51a8d..f088ce0 100644
--- a/xen/arch/x86/hvm/mtrr.c
+++ b/xen/arch/x86/hvm/mtrr.c
@@ -578,6 +578,9 @@ int32_t hvm_set_mem_pinned_cacheattr(
 {
     struct hvm_mem_pinned_cacheattr_range *range;
 
+    /* PVH note: The guest writes to MSR_IA32_CR_PAT natively */
+    ASSERT( !is_pvh_domain(d) );
+
     if ( !((type == PAT_TYPE_UNCACHABLE) ||
            (type == PAT_TYPE_WRCOMB) ||
            (type == PAT_TYPE_WRTHROUGH) ||
@@ -693,6 +696,14 @@ uint8_t epte_get_entry_emt(struct domain *d, unsigned long gfn, mfn_t mfn,
          ((d->vcpu == NULL) || ((v = d->vcpu[0]) == NULL)) )
         return MTRR_TYPE_WRBACK;
 
+    /* PVH fixme: Add support for more memory types */
+    if ( is_pvh_domain(d) )
+    {
+        if (direct_mmio)
+            return MTRR_TYPE_UNCACHABLE;
+        return MTRR_TYPE_WRBACK;
+    }
+
     if ( !v->domain->arch.hvm_domain.params[HVM_PARAM_IDENT_PT] )
         return MTRR_TYPE_WRBACK;
 
diff --git a/xen/arch/x86/hvm/vmx/intr.c b/xen/arch/x86/hvm/vmx/intr.c
index e376f3c..b94f9d5 100644
--- a/xen/arch/x86/hvm/vmx/intr.c
+++ b/xen/arch/x86/hvm/vmx/intr.c
@@ -219,15 +219,16 @@ void vmx_intr_assist(void)
         return;
     }
 
-    /* Crank the handle on interrupt state. */
-    pt_vector = pt_update_irq(v);
+    if ( !is_pvh_vcpu(v) )
+        /* Crank the handle on interrupt state. */
+        pt_vector = pt_update_irq(v);
 
     do {
         intack = hvm_vcpu_has_pending_irq(v);
         if ( likely(intack.source == hvm_intsrc_none) )
             goto out;
 
-        if ( unlikely(nvmx_intr_intercept(v, intack)) )
+        if ( !is_pvh_vcpu(v) && unlikely(nvmx_intr_intercept(v, intack)) )
             goto out;
 
         intblk = hvm_interrupt_blocked(v, intack);
diff --git a/xen/arch/x86/time.c b/xen/arch/x86/time.c
index 6e94847..484eb07 100644
--- a/xen/arch/x86/time.c
+++ b/xen/arch/x86/time.c
@@ -1933,6 +1933,15 @@ void tsc_set_info(struct domain *d,
         d->arch.vtsc = 0;
         return;
     }
+    if ( is_pvh_domain(d) && tsc_mode != TSC_MODE_NEVER_EMULATE )
+    {
+        /* PVH fixme: support more tsc modes */
+        dprintk(XENLOG_WARNING,
+                "PVH currently does not support tsc emulation. Setting it "
+                "to no emulation\n");
+        d->arch.vtsc = 0;
+        return;
+    }
 
     switch ( d->arch.tsc_mode = tsc_mode )
     {
-- 
1.7.2.3

  parent reply	other threads:[~2013-05-15  0:52 UTC|newest]

Thread overview: 51+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-05-15  0:52 [PATCH 00/20][V5]: PVH xen: version 5 patches Mukesh Rathor
2013-05-15  0:52 ` [PATCH 01/20] PVH xen: turn gdb_frames/gdt_ents into union Mukesh Rathor
2013-05-15  0:52 ` [PATCH 02/20] PVH xen: add XENMEM_add_to_physmap_range Mukesh Rathor
2013-05-15  9:58   ` Jan Beulich
2013-05-15 23:05     ` Mukesh Rathor
2013-05-16  7:21       ` Jan Beulich
2013-05-16 11:03         ` Stefano Stabellini
2013-05-16 12:01           ` Jan Beulich
2013-05-16 15:04             ` Stefano Stabellini
2013-05-16 23:56         ` Mukesh Rathor
2013-05-17  6:37           ` Jan Beulich
2013-05-17 22:24             ` Mukesh Rathor
2013-05-15  0:52 ` [PATCH 03/20] PVH xen: create domctl_memory_mapping() function Mukesh Rathor
2013-05-15 10:07   ` Jan Beulich
2013-05-15  0:52 ` [PATCH 04/20] PVH xen: add params to read_segment_register Mukesh Rathor
2013-05-15  0:52 ` [PATCH 05/20] PVH xen: vmx realted preparatory changes for PVH Mukesh Rathor
2013-05-15  0:52 ` [PATCH 06/20] PVH xen: Move e820 fields out of pv_domain struct Mukesh Rathor
2013-05-15 10:27   ` Jan Beulich
2013-05-15  0:52 ` [PATCH 07/20] PVH xen: Introduce PVH guest type Mukesh Rathor
2013-05-15  0:52 ` [PATCH 08/20] PVH xen: tools changes to create PVH domain Mukesh Rathor
2013-05-15  0:52 ` [PATCH 09/20] PVH xen: domain creation code changes Mukesh Rathor
2013-05-15  0:52 ` [PATCH 10/20] PVH xen: create PVH vmcs, and also initialization Mukesh Rathor
2013-05-15  0:52 ` [PATCH 11/20] PVH xen: introduce pvh.c Mukesh Rathor
2013-05-15 10:42   ` Jan Beulich
2013-05-16  1:42     ` Mukesh Rathor
2013-05-16  8:00       ` Jan Beulich
2013-05-17  0:27         ` Mukesh Rathor
2013-05-17  6:43           ` Jan Beulich
2013-05-21  0:08             ` Mukesh Rathor
2013-05-21  7:07               ` Jan Beulich
2013-05-15  0:52 ` [PATCH 12/20] PVH xen: create read_descriptor_sel() Mukesh Rathor
2013-05-15  0:52 ` [PATCH 13/20] PVH xen: introduce vmx_pvh.c Mukesh Rathor
2013-05-15 11:46   ` Jan Beulich
2013-05-15  0:52 ` Mukesh Rathor [this message]
2013-05-15  0:52 ` [PATCH 15/20] PVH xen: hcall page initialize, create PVH guest type, etc Mukesh Rathor
2013-05-15  0:52 ` [PATCH 16/20] PVH xen: Miscellaneous changes Mukesh Rathor
2013-05-15 11:53   ` Jan Beulich
2013-05-16  1:51     ` Mukesh Rathor
2013-05-15  0:52 ` [PATCH 17/20] PVH xen: Introduce p2m_map_foreign Mukesh Rathor
2013-05-15 11:55   ` Jan Beulich
2013-05-15  0:52 ` [PATCH 18/20] PVH xen: Add and remove foreign pages Mukesh Rathor
2013-05-15 12:05   ` Jan Beulich
2013-05-15  0:52 ` [PATCH 19/20] PVH xen: elf and iommu related changes to prep for dom0 PVH Mukesh Rathor
2013-05-15 12:12   ` Jan Beulich
2013-05-16  1:58     ` Mukesh Rathor
2013-05-16  8:03       ` Jan Beulich
2013-05-17  1:14         ` Mukesh Rathor
2013-05-17  6:45           ` Jan Beulich
2013-05-18  2:01         ` Mukesh Rathor
2013-05-21  7:14           ` Jan Beulich
2013-05-15  0:52 ` [PATCH 20/20] PVH xen: PVH dom0 creation Mukesh Rathor

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=1368579168-30829-15-git-send-email-mukesh.rathor@oracle.com \
    --to=mukesh.rathor@oracle.com \
    --cc=Xen-devel@lists.xensource.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.