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hv: add static check for CONFIG_HV_RAM_START and CONFIG_HV_RAM_SIZE 

Hypervisor uses 2MB large page, and if either CONFIG_HV_RAM_START or
CONFIG_HV_RAM_SIZE is not aligned to 2MB, ACRN won't boot. Add static check
to avoid unexpected boot failures.

If CONFIG_RELOC is enabled, CONFIG_HV_RAM_START is not directly referred
by the code, but it causes problems because ld_text_end could be relocated
to an address that is not 2MB aligned which fails mmu_modify_or_del().

Tracked-On: #4441
Reviewed-by: Yin Fengwei <fengwei.yin@intel.com>
Signed-off-by: Zide Chen <zide.chen@intel.com>
This commit is contained in:
Zide Chen 2020-02-26 15:51:16 -08:00 committed by wenlingz
parent 696f6c7ba4
commit 659e5420df
1 changed files with 9 additions and 0 deletions
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9
hypervisor/pre_build/static_checks.c
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@ -8,6 +8,7 @@
#include <boot_context.h> #include <boot_context.h>
#include <acrn_common.h> #include <acrn_common.h>
#include <vcpu.h> #include <vcpu.h>
#include <mmu.h>
#include <trusty.h> #include <trusty.h>
#define CAT__(A,B) A ## B #define CAT__(A,B) A ## B
@ -20,6 +21,14 @@ typedef int32_t CAT_(CTA_DummyType,__LINE__)[(expr) ? 1 : -1]
#error "VM number or VCPU number are too big" #error "VM number or VCPU number are too big"
#endif #endif
#if ((CONFIG_HV_RAM_START & (MEM_2M - 1UL)) != 0UL)
#error "CONFIG_HV_RAM_START must be aligned to 2MB"
#endif
#if ((CONFIG_HV_RAM_SIZE & (MEM_2M - 1UL)) != 0UL)
#error "CONFIG_HV_RAM_SIZE must be integral multiple of 2MB"
#endif
/* Build time sanity checks to make sure hard-coded offset /* Build time sanity checks to make sure hard-coded offset
* is matching the actual offset! * is matching the actual offset!
*/ */