cc649a7865
[ Upstream commit ecb6237fa397b7b810d798ad19322eca466dbab1 ]
1 << 31 is undefined. So switch to 1U << 31.
Fixes: 5ead97c84f ("xen: Core Xen implementation")
Signed-off-by: Julien Grall <jgrall@amazon.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Link: https://lore.kernel.org/r/20220617103037.57828-1-julien@xen.org
Signed-off-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
35 lines
806 B
C
35 lines
806 B
C
// SPDX-License-Identifier: GPL-2.0-only
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/******************************************************************************
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* features.c
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*
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* Xen feature flags.
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*
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* Copyright (c) 2006, Ian Campbell, XenSource Inc.
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*/
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#include <linux/types.h>
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#include <linux/cache.h>
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#include <linux/export.h>
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#include <asm/xen/hypercall.h>
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#include <xen/interface/xen.h>
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#include <xen/interface/version.h>
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#include <xen/features.h>
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u8 xen_features[XENFEAT_NR_SUBMAPS * 32] __read_mostly;
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EXPORT_SYMBOL_GPL(xen_features);
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void xen_setup_features(void)
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{
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struct xen_feature_info fi;
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int i, j;
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for (i = 0; i < XENFEAT_NR_SUBMAPS; i++) {
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fi.submap_idx = i;
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if (HYPERVISOR_xen_version(XENVER_get_features, &fi) < 0)
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break;
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for (j = 0; j < 32; j++)
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xen_features[i * 32 + j] = !!(fi.submap & 1U << j);
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}
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}
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