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* xen: Add macros MB and GBJulien Grall2013-10-081-1/+0
| | | | | | | Signed-off-by: Julien Grall <julien.grall@linaro.org> Acked-by: Keir Fraser <keir@xen.org> CC: Jan Beulich <jbeulich@suse.com> Reviewed-by: Andrew Cooper <andrew.cooper3@citrix.com>
* xen/arm: rename boot misc region to boot reloc now it has a single purposeIan Campbell2013-09-261-5/+2
| | | | | | Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Acked-by: Julien Grall <julien.grall@linaro.org> Acked-by: Tim Deegan <tim@xen.org>
* xen/arm: Support dtb /memreserve/ regionsIan Campbell2013-09-261-3/+4
| | | | | | | | | | | | | This requires a mapping of the DTB during setup_mm. Previously this was in the BOOT_MISC slot, which is clobbered by setup_pagetables. Split it out into its own slot which can be preserved. Also handle these regions as part of consider_modules() and when adding pages to the heaps to ensure we do not locate any part of Xen or the heaps over them. Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Acked-by: Tim Deegan <tim@xen.org>
* xen/arm: DOMHEAP_SECOND_PAGES is arm32 specificIan Campbell2013-09-261-3/+3
| | | | | | | | since 5263507b1b4a "xen: arm: Use a direct mapping of RAM on arm64" Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Acked-by: Julien Grall <julien.grall@linaro.org> Acked-by: Tim Deegan <tim@xen.org>
* xen/arm: Introduce and use GLOBAL() in asm code.Andrew Cooper2013-08-271-0/+3
| | | | | Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com> Acked-by: Ian Campbell <ian.campbell@citrix.com>
* xen: arm: Use a direct mapping of RAM on arm64Ian Campbell2013-08-201-24/+72
| | | | | | | | | | | | We have plenty of virtual address space so we can avoid needing to map and unmap pages all the time. A totally arbitrarily chosen 32GB frame table leads to support for 5TB of RAM. I haven't tested with anything near that amount of RAM though. There is plenty of room to expand further when that becomes necessary. Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
* xen: gate split heap code on its own config option rather than !X86Ian Campbell2013-08-201-0/+1
| | | | | | | | | I'm going to want to disable this for 64 bit ARM. Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Acked-by: Jan Beulich <jbeulich@suse.com> Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Acked-by: Keir Fraser <keir@xen.org>
* xen: arm: Use _AC macros in config.hIan Campbell2013-08-201-8/+10
| | | | | Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
* xen/arm64: Remove hardcoded value for gic in assembly codeJulien Grall2013-05-131-2/+6
| | | | | | | | | - arm64: use V2M_GIC_BASE_ADDRESS - only expose GIC_*_ADDRESS to assembly. The C code uses base addresses provide by the device tree Signed-off-by: Julien Grall <julien.grall@linaro.org> Acked-by: Ian Campbell <ian.campbell@citrix.com>
* xen/arm: Don't use pl011 UART by default for early printkJulien Grall2013-05-131-2/+0
| | | | | | | | | | | | | | | | | | | | | | | Add CONFIG_EARLY_PRINTK options in configs/arm{32,64}.mk to let the user to choose if he wants to have early output, ie before the console is initialized. This code is specific for each UART. When CONFIG_EARLY_PRINTK is enabled, Xen will only be able to run on a board with this UART. If a developper wants to add support for a new UART, he must implement the following assembly macro/define: - EALY_UART_BASE_ADDRESS: variable which contains the physical base address for the UART - early_uart_init: initialize the UART - early_uart_ready: check and wait until the UART can transmit a new character - early_uart_transmit: transmit a character For more details about the parameters of each function, see arm{32,64}/debug-pl011.inc comments. Signed-off-by: Julien Grall <julien.grall@linaro.org> Acked-by: Ian Campbell <ian.campbell@citrix.com>
* xen/arm: Add versatile express platformJulien Grall2013-05-131-3/+0
| | | | | | | This platform contains nearly nothing specific except the reset function. Signed-off-by: Julien Grall <julien.grall@linaro.org> Acked-by: Ian Campbell <ian.campbell@citrix.com>
* xen/arm: Add generic UART to get the device in the device treeJulien Grall2013-05-131-1/+1
| | | | | | | | | | | | | This generic UART will find the right UART via xen command line with dtuart=myserial. "myserial" is the alias of the UART in the device tree. Xen will retrieve the information via the device tree and call the initialization function for this specific UART thanks to the device API. Signed-off-by: Julien Grall <julien.grall@linaro.org> Acked-by: Ian Campbell <ian.campbell@citrix.com> Acked-by: Keir Fraser <keir@xen.org>
* xen/arm: compile and initialize vmapStefano Stabellini2013-05-081-2/+2
| | | | | | | | | | | | | | | | | Rename EARLY_VMAP_VIRT_END and EARLY_VMAP_VIRT_START to VMAP_VIRT_END and VMAP_VIRT_START. Defining VMAP_VIRT_START triggers the compilation of common/vmap.c. Define PAGE_HYPERVISOR and MAP_SMALL_PAGES (unused on ARM, because we only support 4K pages so as a matter of fact it is always set). Implement map_pages_to_xen and destroy_xen_mappings. Call vm_init from start_xen. Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Acked-by: Ian Campbell <ian.campbell@citrix.com>
* arm: allocate per-PCPU domheap pagetable pagesIan Campbell2013-04-241-0/+4
| | | | | | | | | | | | | | the domheap mappings are supposed to be per-PCPU. Therefore xen_pgtable becomes a per-PCPU variable and we allocate and setup the page tables for each secondary PCPU just before we tell it to come up. Each secondary PCPU starts out on the boot page table but switches to its own page tables ASAP. The boot PCPU uses the boot pagetables as its own. Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Acked-by: TIm Deegan <tim@xen.org>
* xen: correct BITS_PER_EVTCHN_WORD on armIan Campbell2013-03-121-0/+3
| | | | | | | This is always 64-bit on ARM, not BITS_PER_LONG Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Acked-by: Keir Fraser <keir@xen.org>
* xen: arm64: basic config and types headersIan Campbell2013-02-221-0/+15
| | | | | | | | | The 64-bit bitops are taken from the Linux asm-generic implementations. They should be replaced with optimised versions from the Linux arm64 port when they become available. Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Acked-by: Tim Deegan <tim@xen.org>
* Fix emacs local variable block to use correct C style variable.David Vrabel2013-02-211-1/+1
| | | | | | | The emacs variable to set the C style from a local variable block is c-file-style, not c-set-style. Signed-off-by: David Vrabel <david.vrabel@citrix.com
* xen/arm: introduce a driver for the ARM HDLCD controllerStefano Stabellini2013-02-151-0/+2
| | | | | | | | | | | | | | Read the screen resolution setting from device tree, find the corresponding modeline in a small table of standard video modes, set the hardware accordingly. Use vexpress_syscfg to configure the pixel clock. Use the generic framebuffer functions to print on the screen. Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Acked-by: Ian Campbell <ian.campbell@citrix.com> Committed-by: Ian Campbell <ian.campbell@citrix.com>
* xen/arm: introduce early_ioremapStefano Stabellini2013-01-241-0/+4
| | | | | | | | | | | Introduce a function to map a range of physical memory into Xen virtual memory. It doesn't need domheap to be setup. It is going to be used to map the videoram. Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Acked-by: Ian Campbell <ian.campbell@citrix.com> Committed-by: Ian Campbell <ian.campbell@citrix.com>
* arm: make virtual address defines unsignedIan Campbell2012-10-111-8/+8
| | | | | | | | avoids confusion due to overflow etc. Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Acked-by: Tim Deegan <tim@xen.org> Committed-by: Ian Campbell <ian.campbell@citrix.com>
* arm: do not set max_vcpus = 8 in arch_domain_create.Ian Campbell2012-06-261-1/+1
| | | | | | | | | | | XEN_DOMCTL_max_vcpus cannot reduce max_vcpus and therefore we can't create a smaller guest. The limit of 8 (due to GIC limits) should be expressed in MAX_VIRT_CPUS. Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Committed-by: Ian Campbell <ian.campbell@citrix.com>
* arm: shared_info page allocation and mappingStefano Stabellini2012-06-011-0/+2
| | | | | | | | | | | Allocate the shared_info page at domain creation. Implement arch_memory_op, only for XENMEM_add_to_physmap with space == XENMAPSPACE_shared_info, so that the guest can map the shared_info page. Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Committed-by: Ian Campbell <ian.campbell@citrix.com>
* arm: Shutdown and rebootTim Deegan2012-03-131-0/+3
| | | | | | | | | Reboot runes grabbed from linux's SP810 reset function. Doesn't seem to work on the model, though. Signed-off-by: Tim Deegan <tim@xen.org> Acked-by: Ian Campbell <ian.campbell@citrix.com> Committed-by: Ian Campbell <ian.campbell@citrix.com>
* arm: map device tree blob in initial page tablesDavid Vrabel2012-02-131-0/+6
| | | | | | | | | | | | | Add a mapping for the device tree blob in the initial page tables. This will allow the DTB to be parsed for memory information prior to setting up the real page tables. It is mapped into the first L2 slot after the fixmap. When this slot is reused in setup_pagetables(), flush the TLB. Signed-off-by: David Vrabel <david.vrabel@citrix.com> Acked-by: Tim Deegan <tim@xen.org> Committed-by: Ian Campbell <ian.campbell@citrix.com>
* arm: bit manipulation, copy and division librariesStefano Stabellini2012-02-091-0/+3
| | | | | | | | | | Bit manipulation, division and memcpy & friends implementations for the ARM architecture, shamelessly taken from Linux. Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Signed-off-by: Tim Deegan <Tim.Deegan@citrix.com> Committed-by: Ian Campbell <ian.campbell@citrix.com>
* arm: header filesStefano Stabellini2012-02-091-0/+122
A simple implementation of everything under asm-arm and arch-arm.h; some of these files are shamelessly taken from Linux. Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Signed-off-by: Tim Deegan <Tim.Deegan@citrix.com> Committed-by: Ian Campbell <ian.campbell@citrix.com>
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