From: Juergen Gross <jgross@suse.com>
To: xen-devel@lists.xenproject.org, linux-kernel@vger.kernel.org,
x86@kernel.org
Cc: Juergen Gross <jgross@suse.com>,
Boris Ostrovsky <boris.ostrovsky@oracle.com>,
Stefano Stabellini <sstabellini@kernel.org>,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
"H. Peter Anvin" <hpa@zytor.com>
Subject: [PATCH v2 0/3] xen: remove some checks for always present Xen features
Date: Fri, 30 Jul 2021 09:18:01 +0200 [thread overview]
Message-ID: <20210730071804.4302-1-jgross@suse.com> (raw)
Some features of Xen can be assumed to be always present, so add a
central check to verify this being true and remove the other checks.
Juergen Gross (3):
xen: check required Xen features
xen: assume XENFEAT_mmu_pt_update_preserve_ad being set for pv guests
xen: assume XENFEAT_gnttab_map_avail_bits being set for pv guests
arch/x86/xen/enlighten_pv.c | 12 ++----------
arch/x86/xen/mmu_pv.c | 4 ++--
drivers/xen/features.c | 18 ++++++++++++++++++
drivers/xen/gntdev.c | 36 ++----------------------------------
4 files changed, 24 insertions(+), 46 deletions(-)
--
2.26.2
next reply other threads:[~2021-07-30 7:18 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-07-30 7:18 Juergen Gross [this message]
2021-07-30 7:18 ` [PATCH v2 1/3] xen: check required Xen features Juergen Gross
2021-07-30 7:18 ` [PATCH v2 2/3] xen: assume XENFEAT_mmu_pt_update_preserve_ad being set for pv guests Juergen Gross
2021-07-30 7:18 ` [PATCH v2 3/3] xen: assume XENFEAT_gnttab_map_avail_bits " Juergen Gross
2021-07-30 13:10 ` [PATCH v2 0/3] xen: remove some checks for always present Xen features Boris Ostrovsky
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