kvm.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Janosch Frank <frankja@linux.ibm.com>
To: kvm@vger.kernel.org
Cc: borntraeger@de.ibm.com, david@redhat.com,
	linux-s390@vger.kernel.org, imbrenda@linux.ibm.com
Subject: [PATCH 07/14] s390/mm: factor out idte global flush into gmap_idte_global
Date: Wed, 13 Jan 2021 09:41:06 +0000	[thread overview]
Message-ID: <20210113094113.133668-8-frankja@linux.ibm.com> (raw)
In-Reply-To: <20210113094113.133668-1-frankja@linux.ibm.com>

Introduce a function to do a idte global flush on a gmap pmd and
remove some code duplication.

Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
---
 arch/s390/mm/gmap.c | 28 ++++++++++++++--------------
 1 file changed, 14 insertions(+), 14 deletions(-)

diff --git a/arch/s390/mm/gmap.c b/arch/s390/mm/gmap.c
index b7199c55f98a..f89e710c31af 100644
--- a/arch/s390/mm/gmap.c
+++ b/arch/s390/mm/gmap.c
@@ -1009,6 +1009,18 @@ static pte_t *gmap_pte_from_pmd(struct gmap *gmap, pmd_t *pmdp,
 	return pte_offset_map(pmdp, addr);
 }
 
+static inline void gmap_idte_global(unsigned long asce, pmd_t *pmdp,
+				    unsigned long gaddr)
+{
+	if (MACHINE_HAS_TLB_GUEST)
+		__pmdp_idte(gaddr, pmdp, IDTE_GUEST_ASCE, asce,
+			    IDTE_GLOBAL);
+	else if (MACHINE_HAS_IDTE)
+		__pmdp_idte(gaddr, pmdp, 0, 0, IDTE_GLOBAL);
+	else
+		__pmdp_csp(pmdp);
+}
+
 /**
  * gmap_pmd_split_free - Free a split pmd's page table
  * @pmdp The split pmd that we free of its page table
@@ -2468,13 +2480,7 @@ static void gmap_pmdp_xchg(struct gmap *gmap, pmd_t *pmdp, pmd_t new,
 	pmdp_notify_gmap(gmap, pmdp, gaddr, vmaddr);
 	if (pmd_large(new))
 		pmd_val(new) &= ~GMAP_SEGMENT_NOTIFY_BITS;
-	if (MACHINE_HAS_TLB_GUEST)
-		__pmdp_idte(gaddr, pmdp, IDTE_GUEST_ASCE, gmap->asce,
-			    IDTE_GLOBAL);
-	else if (MACHINE_HAS_IDTE)
-		__pmdp_idte(gaddr, pmdp, 0, 0, IDTE_GLOBAL);
-	else
-		__pmdp_csp(pmdp);
+	gmap_idte_global(gmap->asce, pmdp, gaddr);
 	*pmdp = new;
 }
 
@@ -2587,13 +2593,7 @@ void gmap_pmdp_idte_global(struct mm_struct *mm, unsigned long vmaddr)
 			pmdp_notify_gmap(gmap, pmdp, gaddr, vmaddr);
 			if (pmd_large(*pmdp))
 				WARN_ON(*entry & GMAP_SEGMENT_NOTIFY_BITS);
-			if (MACHINE_HAS_TLB_GUEST)
-				__pmdp_idte(gaddr, pmdp, IDTE_GUEST_ASCE,
-					    gmap->asce, IDTE_GLOBAL);
-			else if (MACHINE_HAS_IDTE)
-				__pmdp_idte(gaddr, pmdp, 0, 0, IDTE_GLOBAL);
-			else
-				__pmdp_csp(pmdp);
+			gmap_idte_global(gmap->asce, pmdp, gaddr);
 			gmap_pmd_split_free(gmap, pmdp);
 			*entry = _SEGMENT_ENTRY_EMPTY;
 		}
-- 
2.27.0


  parent reply	other threads:[~2021-01-13  9:42 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-01-13  9:40 [PATCH 00/14] KVM: s390: Add huge page VSIE support Janosch Frank
2021-01-13  9:41 ` [PATCH 01/14] s390/mm: Code cleanups Janosch Frank
2021-01-13  9:41 ` [PATCH 02/14] s390/mm: Improve locking for huge page backings Janosch Frank
2021-01-13  9:41 ` [PATCH 03/14] s390/mm: Take locking out of gmap_protect_pte Janosch Frank
2021-01-13  9:41 ` [PATCH 04/14] s390/mm: split huge pages in GMAP when protecting Janosch Frank
2021-01-13  9:41 ` [PATCH 05/14] s390/mm: Split huge pages when migrating Janosch Frank
2021-01-13  9:41 ` [PATCH 06/14] s390/mm: Provide vmaddr to pmd notification Janosch Frank
2021-01-13  9:41 ` Janosch Frank [this message]
2021-01-13  9:41 ` [PATCH 08/14] s390/mm: Make gmap_read_table EDAT1 compatible Janosch Frank
2021-01-13  9:41 ` [PATCH 09/14] s390/mm: Make gmap_protect_rmap " Janosch Frank
2021-01-13  9:41 ` [PATCH 10/14] s390/mm: Add simple ptep shadow function Janosch Frank
2021-01-13  9:41 ` [PATCH 11/14] s390/mm: Add gmap shadowing for large pmds Janosch Frank
2021-01-13  9:41 ` [PATCH 12/14] s390/mm: Add gmap lock classes Janosch Frank
2021-01-13  9:41 ` [PATCH 13/14] s390/mm: Pull pmd invalid check in gmap_pmd_op_walk Janosch Frank
2021-01-13  9:41 ` [PATCH 14/14] KVM: s390: Allow the VSIE to be used with huge pages Janosch Frank

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=20210113094113.133668-8-frankja@linux.ibm.com \
    --to=frankja@linux.ibm.com \
    --cc=borntraeger@de.ibm.com \
    --cc=david@redhat.com \
    --cc=imbrenda@linux.ibm.com \
    --cc=kvm@vger.kernel.org \
    --cc=linux-s390@vger.kernel.org \
    /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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).