[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[RFC PATCH v6 27/43] arm/altp2m: Add support for altp2m_{get,set}_altp2m
- To: <xen-devel@xxxxxxxxxxxxxxxxxxxx>
- From: Rose Spangler <Rose.Spangler@xxxxxxxxxxxxxx>
- Date: Mon, 20 Apr 2026 17:31:50 -0400
- Arc-authentication-results: i=2; mx.microsoft.com 1; spf=pass (sender ip is 40.93.14.102) smtp.rcpttodomain=amd.com smtp.mailfrom=elektrobit.com; dmarc=pass (p=quarantine sp=none pct=100) action=none header.from=elektrobit.com; dkim=pass (signature was verified) header.d=elektrobit.com; arc=pass (0 oda=1 ltdi=1 spf=[1,1,smtp.mailfrom=elektrobit.com] dmarc=[1,1,header.from=elektrobit.com])
- Arc-authentication-results: i=1; mx.microsoft.com 1; spf=pass (sender ip is 213.95.148.172) smtp.rcpttodomain=lists.xenproject.org smtp.mailfrom=elektrobit.com; dmarc=pass (p=quarantine sp=none pct=100) action=none header.from=elektrobit.com; dkim=none (message not signed); arc=none (0)
- Arc-message-signature: i=2; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector10001; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=2GKS7huUjzjhqkDR3rg4P6NQTDEiD+t2h7OWKwFuOAU=; b=pZcVMxBlWKNCAuC0wq5fB+OxqZ7QEAb3cefYgTzN9fjLO/iO1w0Ni+Mtpjr29h1ACwdKWJijSOH9YFJ3HO27IJFLdtXod8xFwxvasXdJXUaKqbj/fCs8lGOZWK09vtsA4sWnYx5jOs5xe9cJx2M2LUmW0DA+UJeXHYjo/OHhjnhl0iOCL1+tJOva1Ven7P11tXMk/lDj+Cx3xZKO1solbn3b0nX4Mec6UmrhDOORX/O35PwLXFZaHUhLim5qDTh3JIhHu40G3f6JB92Fm+7TVD0NB4lH9hlN2kl93P4Bd09gtSLYX+cGLfNPkSuDYkozycEkw7QiWz/XsEbgFMVC9g==
- Arc-message-signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector10001; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=2GKS7huUjzjhqkDR3rg4P6NQTDEiD+t2h7OWKwFuOAU=; b=Dw3/haY//C7Ii7UOxpqHvDbNF9GALTH4KK0N7mMb669saII/4Rt3WwfyDgq2ebmGEbNZHeuq+eZe2ct3V5+D4nDSzYgMcX1xhGHXUglwVie/4JpmD2PqmiKpPpBvhcrK5xAibu4Me90z1D/KfpdRh2A+LDC1x1BQk7zotAHoQfhMIzhiO2lTgYSzpdQ2W60DWsGzzp39Dn1jpZOtso4tvRzN+sQZo905mCOEko2Zwy4lEmGe1nPLrsmYwdcUI+3XYpgTh8tuUEyQfMSMPR4qWDrPMwtOGSpmqd8+EyKSXXx15DA+1NPCMABhX3bL+CNnNaifLq8sx6SYoAW8rCEwUA==
- Arc-seal: i=2; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=pass; b=YTZ9PLxYVLJw9+iaRVgHYAPxDmph3BUORtRrfuUdt3szLrM5m+Px7m9WnfQX2cDBTCUb9jaeRUkvkgOS6PRMHoRY99XCHT6+IRWib5KOZzs9JcA86YGfIfqAKHBSOnQK3Xz/1tJJc2q5iI0NlKCsnGZNcdaxu4rFwAod24RvAMU00qan4Uac7CYpKa1n1Q49PfLDEyjAQBsvywqp02R5yV5aM9Qist9z0NRs47PALY+DwF7V6gIQhuU1F9bv36ehXCOUgVhrdp/GtGz1p0BZ1maxlulnTUEg8jvCwd7PUqMITht+w0Q2eMUwxMleRtAd8pe2cf+CkhrrvShh/rtdGQ==
- Arc-seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=aQcBDk3xeVNDFjWmLOcNKrqzF7njqybv5nCzVGtgasmGcSPDcOAFd0wqe0+stJVcxKXSsL00uTYa2RcMVwfQaTKQdP/pFA4TECwJVPZssB04dSkEDPPbkkI2sX0N4CIzjKqZGKwVWp/xdgRipBSDZZNI8G3fvdgBV2pYt7T/ellTftsXyniGYU5EQDas2MFsHmbdpww91WsLQhx6jOBtH8d5qdm4Li6DE/tsdNzr74w+GlDOhY/EabOoZEhb7BMIwOP3oPCurXJgwzvx7juGJMgD7XBPkShQ9NgKPY6GHNr1TyQbkq3HQDIkmL5gOvLDAPYRXUhlzks8tzlcAUp7zw==
- Authentication-results: eu.smtp.expurgate.cloud; dkim=pass header.s=selector1 header.d=elektrobit.com header.i="@elektrobit.com" header.h="From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck"; dkim=pass header.s=selector1 header.d=elektrobit.com header.i="@elektrobit.com" header.h="From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck"
- Cc: Rose Spangler <Rose.Spangler@xxxxxxxxxxxxxx>, Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, Anthony PERARD <anthony.perard@xxxxxxxxxx>, Michal Orzel <michal.orzel@xxxxxxx>, Jan Beulich <jbeulich@xxxxxxxx>, "Julien Grall" <julien@xxxxxxx>, Roger Pau Monné <roger.pau@xxxxxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>
- Delivery-date: Mon, 20 Apr 2026 21:33:31 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
This commit adds support for altp2m_get_altp2m and altp2m_set_altp2m on
ARM. The x86-specific VCPU accesses have been replaced with the
architecture independent functions altp2m_vcpu_idx and altp2m_set_vcpu_idx.
This is commit 4/4 of the altp2m_{get,set}_altp2m phase.
Signed-off-by: Rose Spangler <Rose.Spangler@xxxxxxxxxxxxxx>
---
v6: Introduced this patch.
---
xen/include/xen/altp2m.h | 9 ++++-----
1 file changed, 4 insertions(+), 5 deletions(-)
diff --git a/xen/include/xen/altp2m.h b/xen/include/xen/altp2m.h
index 58e74be6deb0..f5a4d0e60562 100644
--- a/xen/include/xen/altp2m.h
+++ b/xen/include/xen/altp2m.h
@@ -8,6 +8,7 @@
#include <public/hvm/hvm_op.h>
+#include <asm/altp2m.h>
#include <asm/p2m.h>
#define INVALID_ALTP2M 0xffff
@@ -31,11 +32,10 @@ static inline bool altp2m_active(const struct domain *d)
return d->altp2m_active;
}
-#ifdef CONFIG_X86
/* get current alternate p2m table */
static inline struct p2m_domain *altp2m_get_altp2m(struct vcpu *v)
{
- unsigned int index = vcpu_altp2m(v).p2midx;
+ unsigned int index = altp2m_vcpu_idx(v);
if ( index == INVALID_ALTP2M )
return NULL;
@@ -52,19 +52,18 @@ static inline bool altp2m_set_altp2m(struct vcpu *v,
unsigned int idx)
BUG_ON(idx >= v->domain->nr_altp2m);
- if ( idx == vcpu_altp2m(v).p2midx )
+ if ( idx == altp2m_vcpu_idx(v) )
return false;
orig = altp2m_get_altp2m(v);
BUG_ON(!orig);
atomic_dec(&orig->active_vcpus);
- vcpu_altp2m(v).p2midx = idx;
+ altp2m_set_vcpu_idx(v, idx);
atomic_inc(&v->domain->altp2m_p2m[idx]->active_vcpus);
return true;
}
-#endif
int do_altp2m_op(XEN_GUEST_HANDLE_PARAM(void) arg);
--
2.34.1
|
