Message ID | 20190812182125.18094-3-andrew.cooper3@citrix.com (mailing list archive) |
---|---|
State | New, archived |
Headers | show
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d="scan'208";a="4371888" From: Andrew Cooper <andrew.cooper3@citrix.com> To: Xen-devel <xen-devel@lists.xenproject.org> Date: Mon, 12 Aug 2019 19:21:24 +0100 Message-ID: <20190812182125.18094-3-andrew.cooper3@citrix.com> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20190812182125.18094-1-andrew.cooper3@citrix.com> References: <20190812182125.18094-1-andrew.cooper3@citrix.com> MIME-Version: 1.0 Subject: [Xen-devel] [PATCH] x86/desc: Move boot_gdtr into .rodata X-BeenThere: xen-devel@lists.xenproject.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Xen developer discussion <xen-devel.lists.xenproject.org> List-Unsubscribe: <https://lists.xenproject.org/mailman/options/xen-devel>, <mailto:xen-devel-request@lists.xenproject.org?subject=unsubscribe> List-Post: <mailto:xen-devel@lists.xenproject.org> List-Help: <mailto:xen-devel-request@lists.xenproject.org?subject=help> List-Subscribe: <https://lists.xenproject.org/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xenproject.org?subject=subscribe> Cc: Andrew Cooper <andrew.cooper3@citrix.com>, Wei Liu <wl@xen.org>, Jan Beulich <JBeulich@suse.com>, =?utf-8?q?Roger_Pau_Monn=C3=A9?= <roger.pau@citrix.com> Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" <xen-devel-bounces@lists.xenproject.org> X-Virus-Scanned: ClamAV using ClamSMTP |
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x86/desc: Move boot_gdtr into .rodata
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diff --git a/xen/arch/x86/desc.c b/xen/arch/x86/desc.c index 42ccdc2f8c..dfeb1beaa8 100644 --- a/xen/arch/x86/desc.c +++ b/xen/arch/x86/desc.c @@ -89,7 +89,7 @@ seg_desc_t boot_compat_gdt[PAGE_SIZE / sizeof(seg_desc_t)] = * References boot_cpu_gdt_table for a short period, until the CPUs switch * onto their per-CPU GDTs. */ -struct desc_ptr boot_gdtr = { +const struct desc_ptr boot_gdtr = { .limit = LAST_RESERVED_GDT_BYTE, .base = (unsigned long)(boot_gdt - FIRST_RESERVED_GDT_ENTRY), };
It is never written to. This was an oversight when it was moved from asm into C. Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com> --- CC: Jan Beulich <JBeulich@suse.com> CC: Wei Liu <wl@xen.org> CC: Roger Pau Monné <roger.pau@citrix.com> --- xen/arch/x86/desc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)