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Revision 32ffa4f71e10009498ae6b54da65ab316db967bd authored by Axel Rasmussen on 19 May 2021, 20:03:33 UTC, committed by Paolo Bonzini on 27 May 2021, 11:45:55 UTC 
KVM: selftests: compute correct demand paging size
 
This is a preparatory commit needed before we can use different kinds of
backing pages for guest memory.

Previously, we used perf_test_args.host_page_size, which is the host's
native page size (commonly 4K). For VM_MEM_SRC_ANONYMOUS this turns out
to be okay, but in a follow-up commit we want to allow using different
kinds of backing memory.

Take VM_MEM_SRC_ANONYMOUS_HUGETLB for example. Without this change, if
we used that backing page type, when we issued a UFFDIO_COPY ioctl we'd
only do so with 4K, rather than the full 2M of a backing hugepage. In
this case, UFFDIO_COPY returns -EINVAL (__mcopy_atomic_hugetlb checks
the size).

Signed-off-by: Axel Rasmussen <axelrasmussen@google.com>
Message-Id: <20210519200339.829146-5-axelrasmussen@google.com>
Reviewed-by: Ben Gardon <bgardon@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
1 parent 25408e5
Raw File
rtllib_debug.h 
/* SPDX-License-Identifier: GPL-2.0 */
/*
 * Copyright(c) 2008 - 2010 Realtek Corporation. All rights reserved.
 *
 * Contact Information: wlanfae <wlanfae@realtek.com>
 */
#ifndef _RTL_DEBUG_H
#define _RTL_DEBUG_H

/* Allow files to override DRV_NAME */
#ifndef DRV_NAME
#define DRV_NAME "rtllib_92e"
#endif

extern u32 rt_global_debug_component;

/* These are the defines for rt_global_debug_component */
enum RTL_DEBUG {
	COMP_TRACE		= (1 << 0),
	COMP_DBG		= (1 << 1),
	COMP_INIT		= (1 << 2),
	COMP_RECV		= (1 << 3),
	COMP_POWER		= (1 << 6),
	COMP_SWBW		= (1 << 8),
	COMP_SEC		= (1 << 9),
	COMP_LPS		= (1 << 10),
	COMP_QOS		= (1 << 11),
	COMP_RATE		= (1 << 12),
	COMP_RXDESC		= (1 << 13),
	COMP_PHY		= (1 << 14),
	COMP_DIG		= (1 << 15),
	COMP_TXAGC		= (1 << 16),
	COMP_HALDM		= (1 << 17),
	COMP_POWER_TRACKING	= (1 << 18),
	COMP_CH			= (1 << 19),
	COMP_RF			= (1 << 20),
	COMP_FIRMWARE		= (1 << 21),
	COMP_RESET		= (1 << 23),
	COMP_CMDPKT		= (1 << 24),
	COMP_SCAN		= (1 << 25),
	COMP_PS			= (1 << 26),
	COMP_DOWN		= (1 << 27),
	COMP_INTR		= (1 << 28),
	COMP_ERR		= (1 << 31)
};

#define RT_TRACE(component, x, args...)		\
do {			\
	if (rt_global_debug_component & component) \
		printk(KERN_DEBUG DRV_NAME ":" x "\n", ##args);\
} while (0)

#endif
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